<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://casella.com/role/AccountingChanges" xlink:href="cwst-20171231.xsd#AccountingChanges" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/AccountingChangesPolicies" xlink:href="cwst-20171231.xsd#AccountingChangesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/AccountingChangesTables" xlink:href="cwst-20171231.xsd#AccountingChangesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BasisOfPresentation" xlink:href="cwst-20171231.xsd#BasisOfPresentation" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BasisOfPresentationDetail" xlink:href="cwst-20171231.xsd#BasisOfPresentationDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BusinessCombinations" xlink:href="cwst-20171231.xsd#BusinessCombinations" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BusinessCombinationsNarrativeDetail" xlink:href="cwst-20171231.xsd#BusinessCombinationsNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BusinessCombinationsScheduleOfPurchasePricePaidForAcquisitionsDetail" xlink:href="cwst-20171231.xsd#BusinessCombinationsScheduleOfPurchasePricePaidForAcquisitionsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BusinessCombinationsScheduleOfUnauditedProFormaCombinedInformationDetail" xlink:href="cwst-20171231.xsd#BusinessCombinationsScheduleOfUnauditedProFormaCombinedInformationDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/BusinessCombinationsTables" xlink:href="cwst-20171231.xsd#BusinessCombinationsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingencies" xlink:href="cwst-20171231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesNarrativeDetail" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesReconciliationOfExpectedAggregateNonInflatedUndiscountedAmountToAmountRecognizedInStatementsOfFinancialPositionDetail" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesReconciliationOfExpectedAggregateNonInflatedUndiscountedAmountToAmountRecognizedInStatementsOfFinancialPositionDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithPotsdamDetail" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithPotsdamDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithSouthbridgeLandfillDetails" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithSouthbridgeLandfillDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumRentalDetail" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesScheduleOfFutureMinimumRentalDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumRentalPaymentsUnderNonCancellableOperatingLeasesDetail" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesScheduleOfFutureMinimumRentalPaymentsUnderNonCancellableOperatingLeasesDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/CommitmentsAndContingenciesTables" xlink:href="cwst-20171231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedBalanceSheets" xlink:href="cwst-20171231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="cwst-20171231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedStatementOfStockholdersDeficit" xlink:href="cwst-20171231.xsd#ConsolidatedStatementOfStockholdersDeficit" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="cwst-20171231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedStatementsOfComprehensiveLoss" xlink:href="cwst-20171231.xsd#ConsolidatedStatementsOfComprehensiveLoss" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ConsolidatedStatementsOfOperations" xlink:href="cwst-20171231.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/DivestitureTransactions" xlink:href="cwst-20171231.xsd#DivestitureTransactions" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/DivestitureTransactionsDivestitureTransactionsDetail" xlink:href="cwst-20171231.xsd#DivestitureTransactionsDivestitureTransactionsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/DocumentAndEntityInformation" xlink:href="cwst-20171231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EarningsPerShare" xlink:href="cwst-20171231.xsd#EarningsPerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EarningsPerShareDetail" xlink:href="cwst-20171231.xsd#EarningsPerShareDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EarningsPerShareTables" xlink:href="cwst-20171231.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EmployeeBenefitPlans" xlink:href="cwst-20171231.xsd#EmployeeBenefitPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EmployeeBenefitPlansEmployeeBenefitPlansTables" xlink:href="cwst-20171231.xsd#EmployeeBenefitPlansEmployeeBenefitPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EmployeeBenefitPlansMultiemployerDefinedBenefitPensionPlanDetails" xlink:href="cwst-20171231.xsd#EmployeeBenefitPlansMultiemployerDefinedBenefitPensionPlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/EmployeeBenefitPlansNarrativeDetail" xlink:href="cwst-20171231.xsd#EmployeeBenefitPlansNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FairValueOfFinancialInstruments" xlink:href="cwst-20171231.xsd#FairValueOfFinancialInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FairValueOfFinancialInstrumentsDetail" xlink:href="cwst-20171231.xsd#FairValueOfFinancialInstrumentsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FairValueOfFinancialInstrumentsTables" xlink:href="cwst-20171231.xsd#FairValueOfFinancialInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FinalCappingClosureAndPostClosureCosts" xlink:href="cwst-20171231.xsd#FinalCappingClosureAndPostClosureCosts" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FinalCappingClosureAndPostClosureCostsDetail" xlink:href="cwst-20171231.xsd#FinalCappingClosureAndPostClosureCostsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/FinalCappingClosureAndPostClosureCostsTables" xlink:href="cwst-20171231.xsd#FinalCappingClosureAndPostClosureCostsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/GoodwillAndIntangibleAssets" xlink:href="cwst-20171231.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/GoodwillAndIntangibleAssetsComponentsOfIntangibleAssetsDetail" xlink:href="cwst-20171231.xsd#GoodwillAndIntangibleAssetsComponentsOfIntangibleAssetsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/GoodwillAndIntangibleAssetsEstimatedFutureAmortizationExpenseDetail" xlink:href="cwst-20171231.xsd#GoodwillAndIntangibleAssetsEstimatedFutureAmortizationExpenseDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/GoodwillAndIntangibleAssetsScheduleOfActivityAndBalancesRelatedToGoodwillByReportingSegmentDetail" xlink:href="cwst-20171231.xsd#GoodwillAndIntangibleAssetsScheduleOfActivityAndBalancesRelatedToGoodwillByReportingSegmentDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="cwst-20171231.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxes" xlink:href="cwst-20171231.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesNarrativeDetail" xlink:href="cwst-20171231.xsd#IncomeTaxesNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetail" xlink:href="cwst-20171231.xsd#IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesScheduleOfDifferenceInProvisionBenefitForIncomeTaxesDetail" xlink:href="cwst-20171231.xsd#IncomeTaxesScheduleOfDifferenceInProvisionBenefitForIncomeTaxesDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesContinuingOperationsDetail" xlink:href="cwst-20171231.xsd#IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesContinuingOperationsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesScheduleOfReconciliationOfGrossUnrecognizedTaxBenefitsDetail" xlink:href="cwst-20171231.xsd#IncomeTaxesScheduleOfReconciliationOfGrossUnrecognizedTaxBenefitsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/IncomeTaxesTables" xlink:href="cwst-20171231.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeases" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeases" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesComponentsOfInterestExpenseDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesComponentsOfInterestExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesComponentsOfLongTermDebtAndCapitalLeasesDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesComponentsOfLongTermDebtAndCapitalLeasesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesCreditFacilityDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesCreditFacilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesFairValueOfDebtDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesFairValueOfDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesLossOnDebtExtinguishmentDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesLossOnDebtExtinguishmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesScheduleOfFutureMaturitiesOfDebtDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesScheduleOfFutureMaturitiesOfDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesTables" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/LongTermDebtAndCapitalLeasesTaxExemptFinancingsDetails" xlink:href="cwst-20171231.xsd#LongTermDebtAndCapitalLeasesTaxExemptFinancingsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/OtherItemsAndCharges" xlink:href="cwst-20171231.xsd#OtherItemsAndCharges" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/OtherItemsAndChargesDetail" xlink:href="cwst-20171231.xsd#OtherItemsAndChargesDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/OtherItemsAndChargesOtherItemsAndChargesTables" xlink:href="cwst-20171231.xsd#OtherItemsAndChargesOtherItemsAndChargesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/PropertyPlantAndEquipment" xlink:href="cwst-20171231.xsd#PropertyPlantAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/PropertyPlantAndEquipmentComponentsOfPropertyPlantAndEquipmentDetail" xlink:href="cwst-20171231.xsd#PropertyPlantAndEquipmentComponentsOfPropertyPlantAndEquipmentDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/PropertyPlantAndEquipmentNarrativeDetail" xlink:href="cwst-20171231.xsd#PropertyPlantAndEquipmentNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/PropertyPlantAndEquipmentTables" xlink:href="cwst-20171231.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/QuarterlyFinancialInformationUnaudited" xlink:href="cwst-20171231.xsd#QuarterlyFinancialInformationUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/QuarterlyFinancialInformationUnauditedDetail" xlink:href="cwst-20171231.xsd#QuarterlyFinancialInformationUnauditedDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/QuarterlyFinancialInformationUnauditedTables" xlink:href="cwst-20171231.xsd#QuarterlyFinancialInformationUnauditedTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/RelatedPartyTransactions" xlink:href="cwst-20171231.xsd#RelatedPartyTransactions" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/RelatedPartyTransactionsDetail" xlink:href="cwst-20171231.xsd#RelatedPartyTransactionsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/RestrictedAssets" xlink:href="cwst-20171231.xsd#RestrictedAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/RestrictedAssetsDetail" xlink:href="cwst-20171231.xsd#RestrictedAssetsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/RestrictedAssetsTables" xlink:href="cwst-20171231.xsd#RestrictedAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ScheduleIiValuationAccounts" xlink:href="cwst-20171231.xsd#ScheduleIiValuationAccounts" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/ScheduleIiValuationAccountsDetail" xlink:href="cwst-20171231.xsd#ScheduleIiValuationAccountsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SegmentReporting" xlink:href="cwst-20171231.xsd#SegmentReporting" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SegmentReportingSummaryOfFinancialInformationByReportableSegmentDetail" xlink:href="cwst-20171231.xsd#SegmentReportingSummaryOfFinancialInformationByReportableSegmentDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SegmentReportingSummaryOfRevenueAttributableToServicesProvidedByCompanyDetail" xlink:href="cwst-20171231.xsd#SegmentReportingSummaryOfRevenueAttributableToServicesProvidedByCompanyDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SegmentReportingTables" xlink:href="cwst-20171231.xsd#SegmentReportingTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquity" xlink:href="cwst-20171231.xsd#StockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquityAccumulatedOtherComprehensiveIncomeLossDetail" xlink:href="cwst-20171231.xsd#StockholdersEquityAccumulatedOtherComprehensiveIncomeLossDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquityNarrativeDetail" xlink:href="cwst-20171231.xsd#StockholdersEquityNarrativeDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeLossDetail" xlink:href="cwst-20171231.xsd#StockholdersEquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeLossDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquityScheduleOfFairValueOfStockOptionsWeightedAverageAssumptionsDetail" xlink:href="cwst-20171231.xsd#StockholdersEquityScheduleOfFairValueOfStockOptionsWeightedAverageAssumptionsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquitySummaryOfRestrictedStockRestrictedStockUnitAndPerformanceStockUnitActivityDetail" xlink:href="cwst-20171231.xsd#StockholdersEquitySummaryOfRestrictedStockRestrictedStockUnitAndPerformanceStockUnitActivityDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquitySummaryOfStockOptionActivityDetail" xlink:href="cwst-20171231.xsd#StockholdersEquitySummaryOfStockOptionActivityDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/StockholdersEquityTables" xlink:href="cwst-20171231.xsd#StockholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesAssetImpairmentsDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesAssetImpairmentsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesDefinedBenefitPensionPlanDetails" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesDefinedBenefitPensionPlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesDerivativesAndHedgingDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesDerivativesAndHedgingDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesOfAssetsDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesOfAssetsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesGoodwillAndIntangibleAssetsDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesGoodwillAndIntangibleAssetsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesInvestmentsInUnconsolidatedEntitiesDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesInvestmentsInUnconsolidatedEntitiesDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesLandfillAccountingDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesLandfillAccountingDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesSelfInsuranceLiabilitiesAndRelatedCostsDetail" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesSelfInsuranceLiabilitiesAndRelatedCostsDetail" xlink:type="simple" />
  <link:roleRef roleURI="http://casella.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="cwst-20171231.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://casella.com/role/AccountingChanges" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingChangesAndErrorCorrectionsAbstract" xlink:label="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_3E7CAE9E03C0EB11499E76D6FB0DCE86" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_3CA74E6BAE438F0E509776D6FB0DEE8E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_3E7CAE9E03C0EB11499E76D6FB0DCE86" xlink:to="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_3CA74E6BAE438F0E509776D6FB0DEE8E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/AccountingChangesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingChangesAndErrorCorrectionsAbstract" xlink:label="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_706954951CCAD5FC720EDE32BD85A910" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_706954951CCAD5FC720EDE32BD85A910" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_517551F78B78B4A08534DE32BD85F787" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_UseOfEstimates_517551F78B78B4A08534DE32BD85F787" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_1429FC96F81D42A0CD18DE32BD854A8F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_1429FC96F81D42A0CD18DE32BD854A8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_us-gaap_ConcentrationRiskCreditRisk_6CFAD03CD104B3D97A77DE32BD855CA4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_ConcentrationRiskCreditRisk_6CFAD03CD104B3D97A77DE32BD855CA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:label="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_8B00A019BAB6DDBE10BADE32BD854E6A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy_8B00A019BAB6DDBE10BADE32BD854E6A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="loc_us-gaap_InventoryPolicyTextBlock_B65E5FF0C10A02888F99DE32BD856CB5" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_InventoryPolicyTextBlock_B65E5FF0C10A02888F99DE32BD856CB5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_D21547571159EC028DABDE32BD852FA1" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_D21547571159EC028DABDE32BD852FA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationsPolicy" xlink:label="loc_us-gaap_AssetRetirementObligationsPolicy_E919FD9515520445EAEDDE32BD8591D0" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_AssetRetirementObligationsPolicy_E919FD9515520445EAEDDE32BD8591D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_CE5DCEE2E36BB77B9DE3DE32BD85F864" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_LesseeLeasesPolicyTextBlock_CE5DCEE2E36BB77B9DE3DE32BD85F864" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_9B74768A95B90C663E98DE32BD859AE3" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_9B74768A95B90C663E98DE32BD859AE3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentPolicyTextBlock" xlink:label="loc_us-gaap_InvestmentPolicyTextBlock_7077C2B3BA7199DDC97EDE32BD85AB70" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_InvestmentPolicyTextBlock_7077C2B3BA7199DDC97EDE32BD85AB70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_DF118AABDF34A330B6A4DE32BD854FBE" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_FairValueOfFinancialInstrumentsPolicy_DF118AABDF34A330B6A4DE32BD854FBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsPolicy" xlink:label="loc_us-gaap_BusinessCombinationsPolicy_41A9E894694E39DFD944DE32BD85A4CC" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_BusinessCombinationsPolicy_41A9E894694E39DFD944DE32BD85A4CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalCostsPolicy" xlink:label="loc_us-gaap_EnvironmentalCostsPolicy_A63FCC87BB64AB390A7CDE32BD8638E7" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_EnvironmentalCostsPolicy_A63FCC87BB64AB390A7CDE32BD8638E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy" xlink:label="loc_us-gaap_UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy_785802EE97E3933E9638DE32BD862D93" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_UnpaidPolicyClaimsAndClaimsAdjustmentExpensePolicy_785802EE97E3933E9638DE32BD862D93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_27E108F772268375DB16DE32BD8682F6" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_IncomeTaxPolicyTextBlock_27E108F772268375DB16DE32BD8682F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_us-gaap_DerivativesPolicyTextBlock_E427FD8C8AFF4384F0C5DE32BD86C757" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_DerivativesPolicyTextBlock_E427FD8C8AFF4384F0C5DE32BD86C757" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_E6CCCB7488076B21EE5EDE32BD864C4E" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_CommitmentsAndContingenciesPolicyTextBlock_E6CCCB7488076B21EE5EDE32BD864C4E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaap_RevenueRecognitionPolicyTextBlock_006D2AD472F91425847FDE32BD86A460" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_RevenueRecognitionPolicyTextBlock_006D2AD472F91425847FDE32BD86A460" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_76F96AB5DC9B41144775DE32BD86023D" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock_76F96AB5DC9B41144775DE32BD86023D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionAndOtherPostretirementPlansPolicy" xlink:label="loc_us-gaap_PensionAndOtherPostretirementPlansPolicy_730A5376EE5B05BA0581DE32BD86D346" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_PensionAndOtherPostretirementPlansPolicy_730A5376EE5B05BA0581DE32BD86D346" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_A8EE6CD954940A6308CEDE32BD868804" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_A8EE6CD954940A6308CEDE32BD868804" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_4B6A156932A843604FACDE32BD862546" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_EarningsPerSharePolicyTextBlock_4B6A156932A843604FACDE32BD862546" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsPolicyTextBlock" xlink:label="loc_us-gaap_DiscontinuedOperationsPolicyTextBlock_7207E2474AABE7D331B2DE32BD866CDD" xlink:type="locator" />
    <link:presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_DiscontinuedOperationsPolicyTextBlock_7207E2474AABE7D331B2DE32BD866CDD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SubsequentEventsPolicyPolicyTextBlock_0DA845E27BA8A5D8C70CDE32BD863BEE" xlink:type="locator" />
    <link:presentationArc order="25" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_SubsequentEventsPolicyPolicyTextBlock_0DA845E27BA8A5D8C70CDE32BD863BEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_5B201F699159801F0712DE32BD869A00" xlink:type="locator" />
    <link:presentationArc order="26" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_5B201F699159801F0712DE32BD869A00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_1493ABF031F2592E7984DE32BD86FAD5" xlink:type="locator" />
    <link:presentationArc order="27" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_03B2B3508C11595D3D9CDE32BD851F31" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_1493ABF031F2592E7984DE32BD86FAD5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/AccountingChangesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingChangesAndErrorCorrectionsAbstract" xlink:label="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_85755A05FE0CE3D52531DF2F58FFA943" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:label="loc_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_D51D188EAA5911B214DCDEF58104E1EE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingChangesAndErrorCorrectionsAbstract_85755A05FE0CE3D52531DF2F58FFA943" xlink:to="loc_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_D51D188EAA5911B214DCDEF58104E1EE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BasisOfPresentation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1198E66A73C56E65219976D6FB768EA2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:label="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_471F94F8DA9B1B6A93B876D6FB76265A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_1198E66A73C56E65219976D6FB768EA2" xlink:to="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_471F94F8DA9B1B6A93B876D6FB76265A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BasisOfPresentationDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_3E4080575985BEE3D5D576D6FB4B8445" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_7F595C424641AB934AE476D6FB4CA1E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_3E4080575985BEE3D5D576D6FB4B8445" xlink:to="loc_us-gaap_NumberOfOperatingSegments_7F595C424641AB934AE476D6FB4CA1E4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BusinessCombinations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_3D13D6766ADDF53949AE76D6FB2B32B6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationDisclosureTextBlock" xlink:label="loc_us-gaap_BusinessCombinationDisclosureTextBlock_E1730889D3CF04A6C14176D6FB2BEC17" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_3D13D6766ADDF53949AE76D6FB2B32B6" xlink:to="loc_us-gaap_BusinessCombinationDisclosureTextBlock_E1730889D3CF04A6C14176D6FB2BEC17" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BusinessCombinationsNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_C103D06746920B5AB02DDEF580D903E9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_C103D06746920B5AB02DDEF580D903E9" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_B0745A8E830A785B8A44DEF580D9A5CC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_B0745A8E830A785B8A44DEF580D9A5CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_EAE95DDE84839BF34FDFDEF580D9E479" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_B0745A8E830A785B8A44DEF580D9A5CC" xlink:to="loc_us-gaap_SegmentDomain_EAE95DDE84839BF34FDFDEF580D9E479" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EasternRegionMember" xlink:label="loc_cwst_EasternRegionMember_0976133118D9E91B5803DEF580D9224E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_EAE95DDE84839BF34FDFDEF580D9E479" xlink:to="loc_cwst_EasternRegionMember_0976133118D9E91B5803DEF580D9224E" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_WesternRegionMember" xlink:label="loc_cwst_WesternRegionMember_AF9C90189C83363D288EDEF580D9C6BA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_EAE95DDE84839BF34FDFDEF580D9E479" xlink:to="loc_cwst_WesternRegionMember_AF9C90189C83363D288EDEF580D9C6BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_87CE58E1142D70A6A6BADEF580D92D33" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_87CE58E1142D70A6A6BADEF580D92D33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F7B79A000EC039BCCCE2DEF580D90576" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_87CE58E1142D70A6A6BADEF580D92D33" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F7B79A000EC039BCCCE2DEF580D90576" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CollectionBusinessMember" xlink:label="loc_cwst_CollectionBusinessMember_A488556D203C36F7B16BDEF580DA145B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F7B79A000EC039BCCCE2DEF580D90576" xlink:to="loc_cwst_CollectionBusinessMember_A488556D203C36F7B16BDEF580DA145B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteCollectionBusinessMember" xlink:label="loc_cwst_SolidWasteCollectionBusinessMember_FDE81280CADC32471F92DEF580DA71D3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_F7B79A000EC039BCCCE2DEF580D90576" xlink:to="loc_cwst_SolidWasteCollectionBusinessMember_FDE81280CADC32471F92DEF580DA71D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_1FF06A6FE534CCFC9A71DEF580DAB0BF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_1FF06A6FE534CCFC9A71DEF580DAB0BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_DFACE335E56549958829DEF580DAF304" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1FF06A6FE534CCFC9A71DEF580DAB0BF" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_DFACE335E56549958829DEF580DAF304" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_B43DDEE51EEFCE84D3BEDEF580DA3B29" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_DFACE335E56549958829DEF580DAF304" xlink:to="loc_us-gaap_SubsequentEventMember_B43DDEE51EEFCE84D3BEDEF580DA3B29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_856204DE5F80528DE640DEF580DAAF95" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:to="loc_us-gaap_RangeAxis_856204DE5F80528DE640DEF580DAAF95" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_01A3C92A190C096BB0E5DEF580DA277A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_856204DE5F80528DE640DEF580DAAF95" xlink:to="loc_us-gaap_RangeMember_01A3C92A190C096BB0E5DEF580DA277A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_AA85E8C208E3B2A2678DDEF580DA7C8B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_01A3C92A190C096BB0E5DEF580DA277A" xlink:to="loc_us-gaap_MinimumMember_AA85E8C208E3B2A2678DDEF580DA7C8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_77DEF3E5C1698861A50BDEF580DA4ACD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_01A3C92A190C096BB0E5DEF580DA277A" xlink:to="loc_us-gaap_MaximumMember_77DEF3E5C1698861A50BDEF580DA4ACD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_770820C1B1366B54131FDEF580DA7DC7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1C0609C63C832B85BBE1DEF580D9C292" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_770820C1B1366B54131FDEF580DA7DC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C46DE0AED2DDAB70AFFDDEF580DA9DF6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_770820C1B1366B54131FDEF580DA7DC7" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C46DE0AED2DDAB70AFFDDEF580DA9DF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfBusinessesAcquired" xlink:label="loc_us-gaap_NumberOfBusinessesAcquired_9777BDEBB69AF47DC578DEF580DA66D9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_770820C1B1366B54131FDEF580DA7DC7" xlink:to="loc_us-gaap_NumberOfBusinessesAcquired_9777BDEBB69AF47DC578DEF580DA66D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2571A05ACBF9CBF777BFDEF580DAC7CB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_770820C1B1366B54131FDEF580DA7DC7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2571A05ACBF9CBF777BFDEF580DAC7CB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BusinessCombinationsScheduleOfPurchasePricePaidForAcquisitionsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_4A6FB352A92371D82F72DE32BD53E398" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_23027EB35A7BAA62964FDE32BD537B6F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_4A6FB352A92371D82F72DE32BD53E398" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_23027EB35A7BAA62964FDE32BD537B6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_CCF54D46AC6BAB264A71DE32BD534CA6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_23027EB35A7BAA62964FDE32BD537B6F" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_CCF54D46AC6BAB264A71DE32BD534CA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_A5F88585FBA270521503DE32BD537EC0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_CCF54D46AC6BAB264A71DE32BD534CA6" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_A5F88585FBA270521503DE32BD537EC0" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TransferStationsAcquisitionMember" xlink:label="loc_cwst_TransferStationsAcquisitionMember_76AE82C5244B06FF524ADE32BD539427" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_A5F88585FBA270521503DE32BD537EC0" xlink:to="loc_cwst_TransferStationsAcquisitionMember_76AE82C5244B06FF524ADE32BD539427" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_23027EB35A7BAA62964FDE32BD537B6F" xlink:to="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_087F4E81DF2F84170EACDE32BD53E68F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_087F4E81DF2F84170EACDE32BD53E68F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_DB8AD51FF2E32BA34E06DE32BD534EFC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred_DB8AD51FF2E32BA34E06DE32BD534EFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredOther1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredOther1_0F45E41BB87CC17D8F8FDE32BD5384CE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredOther1_0F45E41BB87CC17D8F8FDE32BD5384CE" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_BusinessCombinationConsiderationTransferredHoldback" xlink:label="loc_cwst_BusinessCombinationConsiderationTransferredHoldback_087EA321B4D35330395BDE32BD535E99" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquiredAbstract_DE8A201E8E2036F7AA8EDE32BD5399D4" xlink:to="loc_cwst_BusinessCombinationConsiderationTransferredHoldback_087EA321B4D35330395BDE32BD535E99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_AFB5A69EA33BF688A49ADE32BD53A8AA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_AFB5A69EA33BF688A49ADE32BD53A8AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_2D48D28C5F811C0FBB2EDE32BD54F3D3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_2D48D28C5F811C0FBB2EDE32BD54F3D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_F12348DEE6AA2864B99EDE32BD5434A3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand_F12348DEE6AA2864B99EDE32BD5434A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_3851B1A6B564AE28B215DE32BD54FACA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings_3851B1A6B564AE28B215DE32BD54FACA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment_B2DB8B92F5F1FD15F423DE32BD54BA2D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedEquipment_B2DB8B92F5F1FD15F423DE32BD54BA2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_0FAB86CAC631C0F9D273DE32BD54BB04" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_0FAB86CAC631C0F9D273DE32BD54BB04" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_00159C923F855F444DECDE32BD542326" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_590F6A31F6E57FF46DEADE32BD5393EA" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_00159C923F855F444DECDE32BD542326" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_CA962B6309146729017CDE32BD541CC8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_CA962B6309146729017CDE32BD541CC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_4D8FCB1AFDEF2F41B1ACDE32BD549964" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_498CCA69C8C8A4150D0ADE32BD537772" xlink:to="loc_us-gaap_Goodwill_4D8FCB1AFDEF2F41B1ACDE32BD549964" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BusinessCombinationsScheduleOfUnauditedProFormaCombinedInformationDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_3BAB4767ED8A415E7797DE235BE99975" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_3BAB4767ED8A415E7797DE235BE99975" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_BusinessAcquisitionsProFormaOperatingIncomeLoss" xlink:label="loc_cwst_BusinessAcquisitionsProFormaOperatingIncomeLoss_CB35F36C08459E509DFFDE235BE96B90" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_cwst_BusinessAcquisitionsProFormaOperatingIncomeLoss_CB35F36C08459E509DFFDE235BE96B90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_B654FDFD2A087E6C1238DE235BE91CD5" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_B654FDFD2A087E6C1238DE235BE91CD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_3D199D574B0701BDAA6DDE235BE975A7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_3D199D574B0701BDAA6DDE235BE975A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_C3CC3253180E8C87863BDE235BE9B10B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_C3CC3253180E8C87863BDE235BE9B10B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_8A4D489522A07341BC10DE235BE98298" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1160759898886139901BDE235BE9969F" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_8A4D489522A07341BC10DE235BE98298" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/BusinessCombinationsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_A44CCF2B9064E8D864B976D6FB293560" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_524797FA82BC06758F2A76D6FB29B250" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_A44CCF2B9064E8D864B976D6FB293560" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTextBlock_524797FA82BC06758F2A76D6FB29B250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationTextBlock" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_720B250D21AF4BD31BE876D6FB29CA12" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_A44CCF2B9064E8D864B976D6FB293560" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_720B250D21AF4BD31BE876D6FB29CA12" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingencies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_D0A6F61E63F45E9BF17276D6F9B4DA48" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_492D7BFE2CFBE2B22BE876D6F9B493F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_D0A6F61E63F45E9BF17276D6F9B4DA48" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_492D7BFE2CFBE2B22BE876D6F9B493F4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_C37EC2211F122053E3CADEF558493E8E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsTable" xlink:label="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_C37EC2211F122053E3CADEF558493E8E" xlink:to="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_3B2C4CD16F9B60F1CD80DEF5584CFDFC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_DebtInstrumentAxis_3B2C4CD16F9B60F1CD80DEF5584CFDFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_976866B24BD8250F6C27DEF5584C5AA9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_3B2C4CD16F9B60F1CD80DEF5584CFDFC" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_976866B24BD8250F6C27DEF5584C5AA9" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_A21ESettlementandWaterSystemConstructionFundingAgreementMember" xlink:label="loc_cwst_A21ESettlementandWaterSystemConstructionFundingAgreementMember_1EAFA08099E20EAE049DDEF5584C043A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_976866B24BD8250F6C27DEF5584C5AA9" xlink:to="loc_cwst_A21ESettlementandWaterSystemConstructionFundingAgreementMember_1EAFA08099E20EAE049DDEF5584C043A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9EEEE67459FBD40174FFDEF558524081" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9EEEE67459FBD40174FFDEF558524081" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_D688CD1E483C5E288C7EDEF558538E27" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9EEEE67459FBD40174FFDEF558524081" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_D688CD1E483C5E288C7EDEF558538E27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BondsMember" xlink:label="loc_us-gaap_BondsMember_581C54D308822E7E53BEDEF55853987D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_D688CD1E483C5E288C7EDEF558538E27" xlink:to="loc_us-gaap_BondsMember_581C54D308822E7E53BEDEF55853987D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_8EB91AB6B52677299F84DEF5585371C7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_StatementScenarioAxis_8EB91AB6B52677299F84DEF5585371C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_809F9CC26EFC1C76F54FDEF55853E063" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_8EB91AB6B52677299F84DEF5585371C7" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_809F9CC26EFC1C76F54FDEF55853E063" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_1B8BFD745BE93BCB776ADEF55853289C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_809F9CC26EFC1C76F54FDEF55853E063" xlink:to="loc_us-gaap_ScenarioForecastMember_1B8BFD745BE93BCB776ADEF55853289C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_AA4553B5F21E4353AB9FDEF55853E53E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_dei_LegalEntityAxis_AA4553B5F21E4353AB9FDEF55853E53E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_C727AEC0EE6E64809C45DEF55853B542" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_LegalEntityAxis_AA4553B5F21E4353AB9FDEF55853E53E" xlink:to="loc_dei_EntityDomain_C727AEC0EE6E64809C45DEF55853B542" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MassachusettsDepartmentofEnvironmentalProtectionMADEPandCasellaWasteSystemsMember" xlink:label="loc_cwst_MassachusettsDepartmentofEnvironmentalProtectionMADEPandCasellaWasteSystemsMember_876C1C88E892CAE06927DEF558541389" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_EntityDomain_C727AEC0EE6E64809C45DEF55853B542" xlink:to="loc_cwst_MassachusettsDepartmentofEnvironmentalProtectionMADEPandCasellaWasteSystemsMember_876C1C88E892CAE06927DEF558541389" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_28CE48E8EF0F80DEE9C5DEF558549B38" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_28CE48E8EF0F80DEE9C5DEF558549B38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_9FA94930AF2AF6B54763DEF558540842" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_28CE48E8EF0F80DEE9C5DEF558549B38" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_9FA94930AF2AF6B54763DEF558540842" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SouthbridgeLandfillMember" xlink:label="loc_cwst_SouthbridgeLandfillMember_4E3FE79FEA291B07BAB4DEF558540B37" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_9FA94930AF2AF6B54763DEF558540842" xlink:to="loc_cwst_SouthbridgeLandfillMember_4E3FE79FEA291B07BAB4DEF558540B37" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PotsdamEnvironmentalLiabilityMember" xlink:label="loc_cwst_PotsdamEnvironmentalLiabilityMember_363E286ABF1EA014D0B6DEF558545D02" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_9FA94930AF2AF6B54763DEF558540842" xlink:to="loc_cwst_PotsdamEnvironmentalLiabilityMember_363E286ABF1EA014D0B6DEF558545D02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_3D75CAAC1A4D3A9801A9DEF55854DE1D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_RangeAxis_3D75CAAC1A4D3A9801A9DEF55854DE1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_9AE5960572F0BBCCB016DEF558547B82" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_3D75CAAC1A4D3A9801A9DEF55854DE1D" xlink:to="loc_us-gaap_RangeMember_9AE5960572F0BBCCB016DEF558547B82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_FDAC5977593DABD6D539DEF55855600D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_9AE5960572F0BBCCB016DEF558547B82" xlink:to="loc_us-gaap_MaximumMember_FDAC5977593DABD6D539DEF55855600D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_EBE0768849FAF9A4B277DEF558554E70" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_9AE5960572F0BBCCB016DEF558547B82" xlink:to="loc_us-gaap_MinimumMember_EBE0768849FAF9A4B277DEF558554E70" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationCaseAxis" xlink:label="loc_us-gaap_LitigationCaseAxis_30AA5ECB472ADE437BA1DEF55855246F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_LitigationCaseAxis_30AA5ECB472ADE437BA1DEF55855246F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationCaseTypeDomain" xlink:label="loc_us-gaap_LitigationCaseTypeDomain_C32C357F9BB1894B61FBDEF558551846" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LitigationCaseAxis_30AA5ECB472ADE437BA1DEF55855246F" xlink:to="loc_us-gaap_LitigationCaseTypeDomain_C32C357F9BB1894B61FBDEF558551846" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NoticeofIntenttoSueundertheResourceConservationandRecoveryActMember" xlink:label="loc_cwst_NoticeofIntenttoSueundertheResourceConservationandRecoveryActMember_D8778A9F3D68042BE0A5DEF55855B2FA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LitigationCaseTypeDomain_C32C357F9BB1894B61FBDEF558551846" xlink:to="loc_cwst_NoticeofIntenttoSueundertheResourceConservationandRecoveryActMember_D8778A9F3D68042BE0A5DEF55855B2FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8D47BA3D41F4311969C4DEF5585517A9" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8D47BA3D41F4311969C4DEF5585517A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01ADFE60136F94040525DEF55855E00B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_8D47BA3D41F4311969C4DEF5585517A9" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01ADFE60136F94040525DEF55855E00B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmploymentContractsMember" xlink:label="loc_us-gaap_EmploymentContractsMember_E854F165FD0B20450BEDDEF55856B990" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_01ADFE60136F94040525DEF55855E00B" xlink:to="loc_us-gaap_EmploymentContractsMember_E854F165FD0B20450BEDDEF55856B990" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsLineItems" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsTable_94975C3728FFA2B9F663DEF5584B5BC4" xlink:to="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRent" xlink:label="loc_us-gaap_PaymentsForRent_46374B44E554A61635A5DEF5585617BF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_PaymentsForRent_46374B44E554A61635A5DEF5585617BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_6790356F3C46134B14EEDEF55856DAEA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_6790356F3C46134B14EEDEF55856DAEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_3FB0D69CF90A449F04E8DEF55856E93B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_3FB0D69CF90A449F04E8DEF55856E93B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_40260F5D7F95668AA4DFDEF55856C026" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_DebtInstrumentTerm_40260F5D7F95668AA4DFDEF55856C026" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalExitCostsAnticipatedCost" xlink:label="loc_us-gaap_EnvironmentalExitCostsAnticipatedCost_88158ABB4755CE5149EBDEF558561546" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_EnvironmentalExitCostsAnticipatedCost_88158ABB4755CE5149EBDEF558561546" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesDiscountRate" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesDiscountRate_3D65B74BD102C17E9189DEF558561AC4" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesDiscountRate_3D65B74BD102C17E9189DEF558561AC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossOnContractTermination" xlink:label="loc_us-gaap_LossOnContractTermination_6951E44A9250A20E3A71DEF55856FEB9" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_LossOnContractTermination_6951E44A9250A20E3A71DEF55856FEB9" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ScrapYardAndSolidWasteTransferStation" xlink:label="loc_cwst_ScrapYardAndSolidWasteTransferStation_73449FB15F11A8221DCDDEF558564869" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_ScrapYardAndSolidWasteTransferStation_73449FB15F11A8221DCDDEF558564869" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_UndiscountedCostsPreferredRemedies" xlink:label="loc_cwst_UndiscountedCostsPreferredRemedies_230617DD8F186A28FDFEDEF558566D8C" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_UndiscountedCostsPreferredRemedies_230617DD8F186A28FDFEDEF558566D8C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PercentageParticipationInOnsiteRemediationActivities" xlink:label="loc_cwst_PercentageParticipationInOnsiteRemediationActivities_13088A6F21E3882F3271DEF55857CD84" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_PercentageParticipationInOnsiteRemediationActivities_13088A6F21E3882F3271DEF55857CD84" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EmploymentContractsExecutiveOfficers" xlink:label="loc_cwst_EmploymentContractsExecutiveOfficers_5B9DF76465AEC51B8059DEF55857BC91" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_EmploymentContractsExecutiveOfficers_5B9DF76465AEC51B8059DEF55857BC91" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_InitialTermOfExecutiveEmploymentAgreement" xlink:label="loc_cwst_InitialTermOfExecutiveEmploymentAgreement_DEE0FE07AE183E5B0109DEF558571862" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_InitialTermOfExecutiveEmploymentAgreement_DEE0FE07AE183E5B0109DEF558571862" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_09C0E5C4A3663A6E691CDEF558589905" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_09C0E5C4A3663A6E691CDEF558589905" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ContractExtensionPeriod" xlink:label="loc_cwst_ContractExtensionPeriod_18F355A706ACEBB875B1DEF55858D7D4" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_ContractExtensionPeriod_18F355A706ACEBB875B1DEF55858D7D4" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CommitmentAmountUnderEmploymentAgreement" xlink:label="loc_cwst_CommitmentAmountUnderEmploymentAgreement_468701FD5DBFC84960ABDEF55858F3A6" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_CommitmentAmountUnderEmploymentAgreement_468701FD5DBFC84960ABDEF55858F3A6" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ContractualObligationPaymentsPeriod" xlink:label="loc_cwst_ContractualObligationPaymentsPeriod_FA982F202E3B7FA28775DEF558585516" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_48AA3CFF29BA980E60E4DEF558563C00" xlink:to="loc_cwst_ContractualObligationPaymentsPeriod_FA982F202E3B7FA28775DEF558585516" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesReconciliationOfExpectedAggregateNonInflatedUndiscountedAmountToAmountRecognizedInStatementsOfFinancialPositionDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B9756C752D46B6E59973BE8BE476ED4B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesGross" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesGross_0C3F956B7819C256F162BE8BE4766C8C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B9756C752D46B6E59973BE8BE476ED4B" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesGross_0C3F956B7819C256F162BE8BE4766C8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesDiscount" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesDiscount_67867EBD5A3CEB2DF4CABE8BE476D105" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B9756C752D46B6E59973BE8BE476ED4B" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesDiscount_67867EBD5A3CEB2DF4CABE8BE476D105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_F17D888A161E48FBA272BE8BE476CB8B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_B9756C752D46B6E59973BE8BE476ED4B" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_F17D888A161E48FBA272BE8BE476CB8B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithPotsdamDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_349D1A6C57A36CBD013576D6FB5BEB00" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyTable" xlink:label="loc_us-gaap_SiteContingencyTable_8EBE7F017AE46FDB86E676D6FB5BF75A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_349D1A6C57A36CBD013576D6FB5BEB00" xlink:to="loc_us-gaap_SiteContingencyTable_8EBE7F017AE46FDB86E676D6FB5BF75A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_C1AA83358E55695394C676D6FB5B5A9C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_8EBE7F017AE46FDB86E676D6FB5BF75A" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_C1AA83358E55695394C676D6FB5B5A9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_D0B590FCD081B862208576D6FB5B22E3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_C1AA83358E55695394C676D6FB5B5A9C" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_D0B590FCD081B862208576D6FB5B22E3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PotsdamEnvironmentalLiabilityMember" xlink:label="loc_cwst_PotsdamEnvironmentalLiabilityMember_4FF36FCD3072D7E50EA376D6FB5B7A4F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_D0B590FCD081B862208576D6FB5B22E3" xlink:to="loc_cwst_PotsdamEnvironmentalLiabilityMember_4FF36FCD3072D7E50EA376D6FB5B7A4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyLineItems" xlink:label="loc_us-gaap_SiteContingencyLineItems_6C7FBA5F2A9B1E8E5EA076D6FB5B52EF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_8EBE7F017AE46FDB86E676D6FB5BF75A" xlink:to="loc_us-gaap_SiteContingencyLineItems_6C7FBA5F2A9B1E8E5EA076D6FB5B52EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesRollForward" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_6C7FBA5F2A9B1E8E5EA076D6FB5B52EF" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_A6E2025D66B7575525E876D6FB5BE9B2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_A6E2025D66B7575525E876D6FB5BE9B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesPayments1" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_FE711018E725BABD32E576D6FB5B0FCC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_FE711018E725BABD32E576D6FB5B0FCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_3DE0CC3C6BF31832400B76D6FB5BC95A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_3DE0CC3C6BF31832400B76D6FB5BC95A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_67953929015A7B16D4A676D6FB5BE270" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_A022E51E0D3D446FCADF76D6FB5B2BF8" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_67953929015A7B16D4A676D6FB5BE270" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesScheduleOfEnvironmentalLiabilityAssociatedWithSouthbridgeLandfillDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_68C5E7AF6B9671C762FADEF55879BA13" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyTable" xlink:label="loc_us-gaap_SiteContingencyTable_DA5078E44637CA3E21B6DEF5587A3CEE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_68C5E7AF6B9671C762FADEF55879BA13" xlink:to="loc_us-gaap_SiteContingencyTable_DA5078E44637CA3E21B6DEF5587A3CEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_F4198D271F9FF3258A13DEF5587A3B3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_DA5078E44637CA3E21B6DEF5587A3CEE" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_F4198D271F9FF3258A13DEF5587A3B3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_165BFE3C6AF432E7D8A0DEF5587A83C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_F4198D271F9FF3258A13DEF5587A3B3F" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_165BFE3C6AF432E7D8A0DEF5587A83C3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SouthbridgeLandfillMember" xlink:label="loc_cwst_SouthbridgeLandfillMember_580E848F158CF55D3DB4DEF5587A0F80" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_165BFE3C6AF432E7D8A0DEF5587A83C3" xlink:to="loc_cwst_SouthbridgeLandfillMember_580E848F158CF55D3DB4DEF5587A0F80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyLineItems" xlink:label="loc_us-gaap_SiteContingencyLineItems_B31D38D70531E228FDD3DEF5587ABD3E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_DA5078E44637CA3E21B6DEF5587A3CEE" xlink:to="loc_us-gaap_SiteContingencyLineItems_B31D38D70531E228FDD3DEF5587ABD3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesRollForward" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_B31D38D70531E228FDD3DEF5587ABD3E" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_180362C9441B309B06A3DEF5587A3C9C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_180362C9441B309B06A3DEF5587A3C9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_D57D2E92E6D3E8CC4260DEF5587BF9B6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses_D57D2E92E6D3E8CC4260DEF5587BF9B6" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AccrualForEnvironmentalLossContingenciesObligationsIncurred" xlink:label="loc_cwst_AccrualForEnvironmentalLossContingenciesObligationsIncurred_149CBE31E1A87B998090DEF5588065A9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:to="loc_cwst_AccrualForEnvironmentalLossContingenciesObligationsIncurred_149CBE31E1A87B998090DEF5588065A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesPayments1" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_17D47B718B6435438261DEF5588008F0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesPayments1_17D47B718B6435438261DEF5588008F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingencies_3CA0D4CB3E0820758076DEF55880DF6A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccrualForEnvironmentalLossContingenciesRollForward_6BAFC203A4579F44A12EDEF5587A3848" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingencies_3CA0D4CB3E0820758076DEF55880DF6A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumRentalDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear_EF06426C9A03DCD0F8D576D6F989ACF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear_EF06426C9A03DCD0F8D576D6F989ACF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear_5A7E32169006A7EE287776D6F989CB61" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear_5A7E32169006A7EE287776D6F989CB61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear_A567D3B5472220B8BCAF76D6F989B62D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear_A567D3B5472220B8BCAF76D6F989B62D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear_70623EC7D2F339045C5A76D6F989CBC3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear_70623EC7D2F339045C5A76D6F989CBC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear_4DB5C8D718EB352C6A4776D6F989D298" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear_4DB5C8D718EB352C6A4776D6F989D298" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear_A0432EAC6003F71ABE3E76D6F9898AEF" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear_A0432EAC6003F71ABE3E76D6F9898AEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingenciesGross" xlink:label="loc_us-gaap_AccrualForEnvironmentalLossContingenciesGross_D16F15C61C3FB9209D5976D6F989ABCE" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_88A9DBA9CB1BB16C8F8376D6F98935FE" xlink:to="loc_us-gaap_AccrualForEnvironmentalLossContingenciesGross_D16F15C61C3FB9209D5976D6F989ABCE" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesScheduleOfFutureMinimumRentalPaymentsUnderNonCancellableOperatingLeasesDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_43EBA718949FA5FFAB5B76D6FB792FF0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_43EBA718949FA5FFAB5B76D6FB792FF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_776E4B1EB4AD2F0E114976D6FB7903E7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_776E4B1EB4AD2F0E114976D6FB7903E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_534C43E1747C5E7C4BBC76D6FB795784" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_534C43E1747C5E7C4BBC76D6FB795784" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_7C4EC0620A7E8C479AC076D6FB790A34" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_7C4EC0620A7E8C479AC076D6FB790A34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_22D5511C249EB6886A0A76D6FB795A20" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_22D5511C249EB6886A0A76D6FB795A20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_FFF8B9C49F15B80C992A76D6FB792FFC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_FFF8B9C49F15B80C992A76D6FB792FFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_6CFEF7DCC9441D855BF576D6FB794413" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_E7877BF8FFCA6652708E76D6FB7923F3" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_6CFEF7DCC9441D855BF576D6FB794413" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/CommitmentsAndContingenciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DC50D42B9B1C49B91AAC76D6FAA9A041" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_2012A9696966E8C04AEC76D6FAA95092" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DC50D42B9B1C49B91AAC76D6FAA9A041" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_2012A9696966E8C04AEC76D6FAA95092" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEnvironmentalLossContingenciesBySiteTextBlock" xlink:label="loc_us-gaap_ScheduleOfEnvironmentalLossContingenciesBySiteTextBlock_CD32C32764D74C09344176D6FAA93D0D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DC50D42B9B1C49B91AAC76D6FAA9A041" xlink:to="loc_us-gaap_ScheduleOfEnvironmentalLossContingenciesBySiteTextBlock_CD32C32764D74C09344176D6FAA93D0D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ScheduleOfFutureEnvironmentalRemediationPaymentsTableTextBlock" xlink:label="loc_cwst_ScheduleOfFutureEnvironmentalRemediationPaymentsTableTextBlock_9B206B6AF4C6B342A9F876D6FAA9D85B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DC50D42B9B1C49B91AAC76D6FAA9A041" xlink:to="loc_cwst_ScheduleOfFutureEnvironmentalRemediationPaymentsTableTextBlock_9B206B6AF4C6B342A9F876D6FAA9D85B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ScheduleofReconciliationofExpectedUndiscountedLiabilityToActualLiabilityTableTextBlock" xlink:label="loc_cwst_ScheduleofReconciliationofExpectedUndiscountedLiabilityToActualLiabilityTableTextBlock_A62C3AC9C109429AB47F76D6FAA931EA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DC50D42B9B1C49B91AAC76D6FAA9A041" xlink:to="loc_cwst_ScheduleofReconciliationofExpectedUndiscountedLiabilityToActualLiabilityTableTextBlock_A62C3AC9C109429AB47F76D6FAA931EA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_F29D944B3F85CA5DF6C6CACCE9AC6417" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_60BB33955B719D30B260CACCE9ADBCBF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_F29D944B3F85CA5DF6C6CACCE9AC6417" xlink:to="loc_us-gaap_StatementTable_60BB33955B719D30B260CACCE9ADBCBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_9AAA6D8764C655B7C922CACCE9AD32CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_60BB33955B719D30B260CACCE9ADBCBF" xlink:to="loc_us-gaap_StatementClassOfStockAxis_9AAA6D8764C655B7C922CACCE9AD32CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_72605B1F8A538EF79A4CCACCE9AD7377" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9AAA6D8764C655B7C922CACCE9AD32CD" xlink:to="loc_us-gaap_ClassOfStockDomain_72605B1F8A538EF79A4CCACCE9AD7377" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_EB5DD9FAD851B825B6E1CACCE9ADE358" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_72605B1F8A538EF79A4CCACCE9AD7377" xlink:to="loc_us-gaap_CommonClassAMember_EB5DD9FAD851B825B6E1CACCE9ADE358" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_D48C6EBD1D3E1D944A0ECACCE9AD09DF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_72605B1F8A538EF79A4CCACCE9AD7377" xlink:to="loc_us-gaap_CommonClassBMember_D48C6EBD1D3E1D944A0ECACCE9AD09DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D044518C74B5BBCF7ECBCACCE9ADBB09" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_60BB33955B719D30B260CACCE9ADBCBF" xlink:to="loc_us-gaap_StatementLineItems_D044518C74B5BBCF7ECBCACCE9ADBB09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_D044518C74B5BBCF7ECBCACCE9ADBB09" xlink:to="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_D9844921A26F6A7214CCCACCE9AD3D13" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_D9844921A26F6A7214CCCACCE9AD3D13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_27833EE3DF820268AD2ACACCE9AD9EAC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_27833EE3DF820268AD2ACACCE9AD9EAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesReceivable" xlink:label="loc_us-gaap_IncomeTaxesReceivable_063E720E1A04810E4E18CACCE9ADB84C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_IncomeTaxesReceivable_063E720E1A04810E4E18CACCE9ADB84C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_EE0196CFC1BF90C1948CCACCE9ADF7DA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_PrepaidExpenseCurrent_EE0196CFC1BF90C1948CCACCE9ADF7DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InventoryGross" xlink:label="loc_us-gaap_InventoryGross_2C2DF222D4B499AF50A0CACCE9ADA9DD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_InventoryGross_2C2DF222D4B499AF50A0CACCE9ADA9DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_73FBD98A4EDA14367549CACCE9AD08D6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_OtherAssetsCurrent_73FBD98A4EDA14367549CACCE9AD08D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_9784740506EFC70E383ECACCE9ADEF72" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_A58B1E56F52A247437D9CACCE9AD73AC" xlink:to="loc_us-gaap_AssetsCurrent_9784740506EFC70E383ECACCE9ADEF72" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_6233077A7580CDC54181CACCE9AD7000" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_6233077A7580CDC54181CACCE9AD7000" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_4AD0C9CF491472E148B2CACCE9ADADA4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_Goodwill_4AD0C9CF491472E148B2CACCE9ADADA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_E38D41F78167F701B609CACCE9AD09CF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_E38D41F78167F701B609CACCE9AD09CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndInvestmentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_0BBD1CDEFBF796F461AFCACCE9AEADFC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_0BBD1CDEFBF796F461AFCACCE9AEADFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostMethodInvestments" xlink:label="loc_us-gaap_CostMethodInvestments_3E2BDCD8EB7BDC57A7FBCACCE9AE9A98" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/positiveLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_CostMethodInvestments_3E2BDCD8EB7BDC57A7FBCACCE9AE9A98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_27BCF48EC460E18FC510CACCE9AE21C5" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_27BCF48EC460E18FC510CACCE9AE21C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_AAEDF7B63DDB3C531E60CACCE9AEDF80" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_AAEDF7B63DDB3C531E60CACCE9AEDF80" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_6E35169C98489F1FC655CACCE9AE8E5D" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_7FF92D96E17327E93973CACCE9ADADA5" xlink:to="loc_us-gaap_Assets_6E35169C98489F1FC655CACCE9AE8E5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_D044518C74B5BBCF7ECBCACCE9ADBB09" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_5DA22620A12024F9CCE6CACCE9AE7DF9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_5DA22620A12024F9CCE6CACCE9AE7DF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_C9D2E062E330D4F6565DCACCE9AE2156" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_AccountsPayableCurrent_C9D2E062E330D4F6565DCACCE9AE2156" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_737DB0D968DC622F966ACACCE9AEA450" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_737DB0D968DC622F966ACACCE9AEA450" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_9D9093D67B49200F39AFCACCE9AE6A4F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_InterestPayableCurrent_9D9093D67B49200F39AFCACCE9AE6A4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" xlink:label="loc_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_5C31F4061D357FE7676BCACCE9AEC660" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_5C31F4061D357FE7676BCACCE9AEC660" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_E063642F65B98E0B8308CACCE9AEBAFB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_E063642F65B98E0B8308CACCE9AEBAFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_74D22E0A51895579293BCACCE9AECFBD" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_7E99E02A234AAFE5B63FCACCE9AEED90" xlink:to="loc_us-gaap_LiabilitiesCurrent_74D22E0A51895579293BCACCE9AECFBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_9D1FB4BF53057C57BF97CACCE9AEDC9E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_9D1FB4BF53057C57BF97CACCE9AEDC9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" xlink:label="loc_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_65B9C716D12766477FCFCACCE9AE6103" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_65B9C716D12766477FCFCACCE9AE6103" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_700E73FBAD7C18241A73CACCE9AEDC77" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_700E73FBAD7C18241A73CACCE9AEDC77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_86A1DB9B177BB1D7E8BBCACCE9AEF176" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_86A1DB9B177BB1D7E8BBCACCE9AEF176" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_71B1C37FAE8F71A72BBBCACCE9AE6BA8" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_CommitmentsAndContingencies_71B1C37FAE8F71A72BBBCACCE9AE6BA8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_59CFBF24A310204776CDCACCE9AEBB33" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_59CFBF24A310204776CDCACCE9AEBB33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_59CFBF24A310204776CDCACCE9AEBB33" xlink:to="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_95BF380C2DE6D230DF70CACCE9AFA3C5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:to="loc_us-gaap_CommonStockValue_95BF380C2DE6D230DF70CACCE9AFA3C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_7F6446DD5F04FD304D2DCACCE9AFF1BA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_7F6446DD5F04FD304D2DCACCE9AFF1BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_F50FC3E7DF960B12D4C3CACCE9AFA17B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_F50FC3E7DF960B12D4C3CACCE9AFA17B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_712F96F18CC5E19429DACACCE9AF06B5" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_712F96F18CC5E19429DACACCE9AF06B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_A3E8D7CD9EBF5BF7D5A0CACCE9AF78B3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityAbstract_F09BBE834ADF1898417BCACCE9AF1B3A" xlink:to="loc_us-gaap_StockholdersEquity_A3E8D7CD9EBF5BF7D5A0CACCE9AF78B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_us-gaap_MinorityInterest_7EF6EA3DE90A3E6E63E2CACCE9AF1791" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_59CFBF24A310204776CDCACCE9AEBB33" xlink:to="loc_us-gaap_MinorityInterest_7EF6EA3DE90A3E6E63E2CACCE9AF1791" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_A2EADCE999D59CA5449CCACCE9AF825B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_59CFBF24A310204776CDCACCE9AEBB33" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_A2EADCE999D59CA5449CCACCE9AF825B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_8EF805D773C447A30978CACCE9AFE6D1" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_A1F5F494CA80A169CFC9CACCE9AEC1BA" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_8EF805D773C447A30978CACCE9AFE6D1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_5AA9884CCCAAD59512F176D6FAE4003A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_C7311CC779604FAF968F76D6FAE4081D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_5AA9884CCCAAD59512F176D6FAE4003A" xlink:to="loc_us-gaap_StatementTable_C7311CC779604FAF968F76D6FAE4081D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_28604DDB2730493DFD4176D6FAE5B3D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_C7311CC779604FAF968F76D6FAE4081D" xlink:to="loc_us-gaap_StatementClassOfStockAxis_28604DDB2730493DFD4176D6FAE5B3D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_508B49A85F0ACCE99E5276D6FAE54D74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_28604DDB2730493DFD4176D6FAE5B3D4" xlink:to="loc_us-gaap_ClassOfStockDomain_508B49A85F0ACCE99E5276D6FAE54D74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_386768953D918CC6D3A776D6FAE58BBE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_508B49A85F0ACCE99E5276D6FAE54D74" xlink:to="loc_us-gaap_CommonClassAMember_386768953D918CC6D3A776D6FAE58BBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_045270A302BFD19229E276D6FAE5D269" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_508B49A85F0ACCE99E5276D6FAE54D74" xlink:to="loc_us-gaap_CommonClassBMember_045270A302BFD19229E276D6FAE5D269" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_C7311CC779604FAF968F76D6FAE4081D" xlink:to="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_BEE5C7A7CDA4979273FE76D6FAE53969" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_BEE5C7A7CDA4979273FE76D6FAE53969" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_745BE8434B7CDAC533AD76D6FAE528EE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_745BE8434B7CDAC533AD76D6FAE528EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_2E708129EB272F4D4B4376D6FAE5837A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_2E708129EB272F4D4B4376D6FAE5837A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_ED3BCFDF728BE618F43D76D6FAE5CF1F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_ED3BCFDF728BE618F43D76D6FAE5CF1F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_53F6E030EB49CC983F5E76D6FAE58D85" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_CommonStockSharesIssued_53F6E030EB49CC983F5E76D6FAE58D85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_596EBC7CC87BA982C24376D6FAE54D0B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_596EBC7CC87BA982C24376D6FAE54D0B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_StockholdersEquityVotesperShareHeld" xlink:label="loc_cwst_StockholdersEquityVotesperShareHeld_597BF8409D7BA09D7DE576D6FAE5CDD6" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_67A9051E5B734DA978FD76D6FAE52D33" xlink:to="loc_cwst_StockholdersEquityVotesperShareHeld_597BF8409D7BA09D7DE576D6FAE5CDD6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedStatementOfStockholdersDeficit" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_77D902536270C293B691DE235C3240EF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_5E9742160813C81E04AADE235C326658" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_77D902536270C293B691DE235C3240EF" xlink:to="loc_us-gaap_StatementTable_5E9742160813C81E04AADE235C326658" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_A8F6F7EA08E530C764C3DE235C323520" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5E9742160813C81E04AADE235C326658" xlink:to="loc_us-gaap_StatementClassOfStockAxis_A8F6F7EA08E530C764C3DE235C323520" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_5E87CAD48A79922A313CDE235C32A652" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_A8F6F7EA08E530C764C3DE235C323520" xlink:to="loc_us-gaap_ClassOfStockDomain_5E87CAD48A79922A313CDE235C32A652" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_E77F67093AB68E0C0B85DE235C325FD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_5E87CAD48A79922A313CDE235C32A652" xlink:to="loc_us-gaap_CommonClassAMember_E77F67093AB68E0C0B85DE235C325FD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_8C4440175F7BFF7D0C4ADE235C3394E2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_5E87CAD48A79922A313CDE235C32A652" xlink:to="loc_us-gaap_CommonClassBMember_8C4440175F7BFF7D0C4ADE235C3394E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_9CE5A2D8FB87C7D9182EDE235C334AAE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5E9742160813C81E04AADE235C326658" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_9CE5A2D8FB87C7D9182EDE235C334AAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_9CE5A2D8FB87C7D9182EDE235C334AAE" xlink:to="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_BE2AE66AB6905BC2C9E3DE235C333A14" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:to="loc_us-gaap_CommonStockMember_BE2AE66AB6905BC2C9E3DE235C333A14" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_B48C7F49F21074FDFAF2DE235C33AF2D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_B48C7F49F21074FDFAF2DE235C33AF2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_2B7DF47C3F48443D535EDE235C333A59" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:to="loc_us-gaap_RetainedEarningsMember_2B7DF47C3F48443D535EDE235C333A59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_DDEE3167E81DB49FA42BDE235C3365FA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_DDEE3167E81DB49FA42BDE235C3365FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember_F9BBDE6136CEFE967B1ADE235C33A9A0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_DCA2EBAA685C767CDD04DE235C330512" xlink:to="loc_us-gaap_NoncontrollingInterestMember_F9BBDE6136CEFE967B1ADE235C33A9A0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_8352E53382D0EE568745DE235C33CAFA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5E9742160813C81E04AADE235C326658" xlink:to="loc_us-gaap_StatementLineItems_8352E53382D0EE568745DE235C33CAFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_8352E53382D0EE568745DE235C33CAFA" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_9A0CC499DF75CFB641FDDE235C339881" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_9A0CC499DF75CFB641FDDE235C339881" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_436D694C7C3C195243EBDE235C33BE07" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_436D694C7C3C195243EBDE235C33BE07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_3188BF13BCF38271E986DE235C3312D8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/positiveLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_ProfitLoss_3188BF13BCF38271E986DE235C3312D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6F0B8AFC4E940C5EF596DE235C330376" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6F0B8AFC4E940C5EF596DE235C330376" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_5D821A268C1239338CE4DE235C332E2A" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_5D821A268C1239338CE4DE235C332E2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_DC7E644737C7AD6BBB4CDE235C33BE3A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_DC7E644737C7AD6BBB4CDE235C33BE3A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_8F15A826F2C7E15DE471DE235C33011F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_8F15A826F2C7E15DE471DE235C33011F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders" xlink:label="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_B62703BD9DA1E1A9F6AEDE235C33CE36" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders_B62703BD9DA1E1A9F6AEDE235C33CE36" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance_810D80A57949B0B74AE4DE235C3327D6" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance_810D80A57949B0B74AE4DE235C3327D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityOther" xlink:label="loc_us-gaap_StockholdersEquityOther_D926A7D4AB2E3B454DB9DE235C348FFB" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_StockholdersEquityOther_D926A7D4AB2E3B454DB9DE235C348FFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_48F27D0C5E148849608EDE235C343E3D" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_48F27D0C5E148849608EDE235C343E3D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_F1C6A3427C193D00313ADE235C3415D0" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_8B32F43D0741DB3F99CBDE235C3315DB" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_F1C6A3427C193D00313ADE235C3415D0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_56DFFE39248225584265DD22F0E0D3E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_56DFFE39248225584265DD22F0E0D3E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_0C4DC1AAD8BFF8383E98DD22F0E0182C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/positiveLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_56DFFE39248225584265DD22F0E0D3E6" xlink:to="loc_us-gaap_ProfitLoss_0C4DC1AAD8BFF8383E98DD22F0E0182C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_56DFFE39248225584265DD22F0E0D3E6" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_59A2FBEEDCADA1D4D645DD22F0E0D338" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_59A2FBEEDCADA1D4D645DD22F0E0D338" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DepletionOfLandfillOperatingLeaseObligations" xlink:label="loc_cwst_DepletionOfLandfillOperatingLeaseObligations_05C73B946D22526D09A5DD22F0E06476" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_cwst_DepletionOfLandfillOperatingLeaseObligations_05C73B946D22526D09A5DD22F0E06476" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccretionExpenseIncludingAssetRetirementObligations" xlink:label="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_DF8B271F6402AE58A106DD22F0E0DB49" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_AccretionExpenseIncludingAssetRetirementObligations_DF8B271F6402AE58A106DD22F0E0DB49" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_4904D672318BE1FB7C7EDD22F0E07786" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_4904D672318BE1FB7C7EDD22F0E07786" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_CF8217870971166C88F9DD22F0E087B2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_ShareBasedCompensation_CF8217870971166C88F9DD22F0E087B2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EnvironmentalRemediationExpenseIncludingNoncashCharges" xlink:label="loc_cwst_EnvironmentalRemediationExpenseIncludingNoncashCharges_6E27C02777673F399510DD22F0E04831" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_cwst_EnvironmentalRemediationExpenseIncludingNoncashCharges_6E27C02777673F399510DD22F0E04831" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_71419E9616274795781DDD22F0E05757" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_71419E9616274795781DDD22F0E05757" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NoncashLandfillClosureCharge" xlink:label="loc_cwst_NoncashLandfillClosureCharge_A5CF49B4B7FCE5D2C833DD22F0E00756" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_cwst_NoncashLandfillClosureCharge_A5CF49B4B7FCE5D2C833DD22F0E00756" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureTransactions" xlink:label="loc_cwst_DivestitureTransactions_30CEB850487B535840DCDD22F0E011B1" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_cwst_DivestitureTransactions_30CEB850487B535840DCDD22F0E011B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_9E5AD33095F04C6E3810DD22F0E0465A" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_9E5AD33095F04C6E3810DD22F0E0465A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_FD7A153DB7DBBE08262FDD22F0E06C30" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_FD7A153DB7DBBE08262FDD22F0E06C30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="loc_us-gaap_ImpairmentOfInvestments_BA4B7FAA094084ECFCC1DD22F0E0F5D3" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_ImpairmentOfInvestments_BA4B7FAA094084ECFCC1DD22F0E0F5D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_0C48B0093910279025E1DD22F0E02B20" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities_0C48B0093910279025E1DD22F0E02B20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_407FD8BE461D00FD5A01DD22F0E05FBE" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_407FD8BE461D00FD5A01DD22F0E05FBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_B5A5628399E66D4B12C5DD22F0E0020E" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_3B5C474BA34DFE072A31DD22F0E0A61A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_3B5C474BA34DFE072A31DD22F0E0A61A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_F325B719C1784D1FE3FCDD22F0E03A36" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_F325B719C1784D1FE3FCDD22F0E03A36" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_DD3CCCAB9BC3F6478E11DD22F0E3DCDF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_DD3CCCAB9BC3F6478E11DD22F0E3DCDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_58CFE0A2C5578B6F334BDD22F0E32F73" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_2DF91FC156E2D63AE442DD22F0E028EA" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_58CFE0A2C5578B6F334BDD22F0E32F73" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_B22937D29C76FEFCA3F2DD22F0E37E8B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_56DFFE39248225584265DD22F0E0D3E6" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_B22937D29C76FEFCA3F2DD22F0E37E8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_DDF46B39414F3C5E459BDD22F0E3B0A3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_DDF46B39414F3C5E459BDD22F0E3B0A3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PaymentsToAcquireAcquisitionRelatedPropertyPlantAndEquipment" xlink:label="loc_cwst_PaymentsToAcquireAcquisitionRelatedPropertyPlantAndEquipment_8F317CB7D92FFEA98AF3DD22F0E3FDF0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_cwst_PaymentsToAcquireAcquisitionRelatedPropertyPlantAndEquipment_8F317CB7D92FFEA98AF3DD22F0E3FDF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_F537A964C748FD42DC3EDD22F0E3FDCA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_F537A964C748FD42DC3EDD22F0E3FDCA" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PaymentsForLandfillOperatingLease" xlink:label="loc_cwst_PaymentsForLandfillOperatingLease_C208B637A33AB249EBD0DD22F0E35F6A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_cwst_PaymentsForLandfillOperatingLease_C208B637A33AB249EBD0DD22F0E35F6A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets_1159C1EA4D3D841103BADD22F0E3D3C9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets_1159C1EA4D3D841103BADD22F0E3D3C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_2F49132F2C8FB5592644DD22F0E35450" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_2F49132F2C8FB5592644DD22F0E35450" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromInsuranceSettlementInvestingActivities" xlink:label="loc_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities_F83738813BF227E8F39EDD22F0E3A5AC" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities_F83738813BF227E8F39EDD22F0E3A5AC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4ADE364BB35FED9FB2B3DD22F0E3D970" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_4A1A483C040DF2F2CEE5DD22F0E3A607" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4ADE364BB35FED9FB2B3DD22F0E3D970" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet_05FDBF2E2B5EFE0514D3DD22F0E32C32" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet_05FDBF2E2B5EFE0514D3DD22F0E32C32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_01BEF29F917F57F70792DD22F0E387A4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_01BEF29F917F57F70792DD22F0E387A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_07D46E715124A943747CDD22F0E34BC8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities_07D46E715124A943747CDD22F0E34BC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_0D6EC2EF5A30D6811CACDD22F0E3CC4E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_0D6EC2EF5A30D6811CACDD22F0E3CC4E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_0892A696B3D3B4AC1A06DD22F0E37B3B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_0892A696B3D3B4AC1A06DD22F0E37B3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_164689E820F9A8DACA56DD22F0E357AB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions_164689E820F9A8DACA56DD22F0E357AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_7C3E4A0123B4445CE09DDD22F0E3631F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_7C3E4A0123B4445CE09DDD22F0E3631F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromPaymentsToMinorityShareholders" xlink:label="loc_us-gaap_ProceedsFromPaymentsToMinorityShareholders_25802D9153ECB09D7876DD22F0E387AE" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_ProceedsFromPaymentsToMinorityShareholders_25802D9153ECB09D7876DD22F0E387AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8A096B0463C4C1C9E7C9DD22F0E39E28" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_8C51FC4F4770F8DD865CDD22F0E31433" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_8A096B0463C4C1C9E7C9DD22F0E39E28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_F16029918FA34135F7D6DD22F0E342F1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_F16029918FA34135F7D6DD22F0E342F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_D4ADAB7E2D1E13ADFA22DD22F0E3B3F0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_D4ADAB7E2D1E13ADFA22DD22F0E3B3F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E5F251322D7C4EA74A64DD22F0E3FB77" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E5F251322D7C4EA74A64DD22F0E3FB77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowElementsAbstract_F60F0F0102DC8B3E72C3DD22F0E38850" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_SupplementalCashFlowElementsAbstract_F60F0F0102DC8B3E72C3DD22F0E38850" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="loc_us-gaap_InterestPaidNet_2923DA6EE5D9942E9ED6DD22F0E365EE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract_F60F0F0102DC8B3E72C3DD22F0E38850" xlink:to="loc_us-gaap_InterestPaidNet_2923DA6EE5D9942E9ED6DD22F0E365EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesPaidNet" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_BFAD4D6151CD2C40B3E6DD22F0E3F845" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract_F60F0F0102DC8B3E72C3DD22F0E38850" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_BFAD4D6151CD2C40B3E6DD22F0E3F845" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_C6CA27B4DF6C8805165EDD22F0E3FC2D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_9DF1DADC6B95FADA2850DD22F0E07672" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_C6CA27B4DF6C8805165EDD22F0E3FC2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfAssetsAcquired" xlink:label="loc_us-gaap_FairValueOfAssetsAcquired_AC3D65E541526B83EF35DD22F0E3670C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_C6CA27B4DF6C8805165EDD22F0E3FC2D" xlink:to="loc_us-gaap_FairValueOfAssetsAcquired_AC3D65E541526B83EF35DD22F0E3670C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedStatementsOfComprehensiveLoss" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_0CE0B11646B96DB28C2ADE78593031C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/positiveLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:to="loc_us-gaap_ProfitLoss_0CE0B11646B96DB28C2ADE78593031C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_OtherComprehensiveIncomeLossSettlementonDerivativesAfterTax" xlink:label="loc_cwst_OtherComprehensiveIncomeLossSettlementonDerivativesAfterTax_F2EA6BE1542DA79DA3F3DE7859305BC4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:to="loc_cwst_OtherComprehensiveIncomeLossSettlementonDerivativesAfterTax_F2EA6BE1542DA79DA3F3DE7859305BC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_114F4E3AAE76328DE1B0DE785930829F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax_114F4E3AAE76328DE1B0DE785930829F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_F96DDE34FF25DF9A4C09DE785930238F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_F96DDE34FF25DF9A4C09DE785930238F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_1D4B10E53001022F1982DE7859305627" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_1D4B10E53001022F1982DE7859305627" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_567EBC472DEE93850219DE7859314DFE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_FF6A416D18762B3BCC2CDE7859303BC0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_567EBC472DEE93850219DE7859314DFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_667174F87AFB6B614D56DE78593178FB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_667174F87AFB6B614D56DE78593178FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_A0F35A6BE93A7C5F71FFDE785931EDB7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_A0F35A6BE93A7C5F71FFDE785931EDB7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_516C0EAF4436EED18A92DE7859317BFD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_84D90C0F0DADEF4A4C74DE785930AE7D" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_516C0EAF4436EED18A92DE7859317BFD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_FCA80BEA3E757D500B94DEF5813A9F18" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_Revenues_FCA80BEA3E757D500B94DEF5813A9F18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_9A2BAE168D0E43AE9993DEF5813A6936" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_9A2BAE168D0E43AE9993DEF5813A6936" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_3EA4FCFC3CC8C4259F6ADEF5813AEA66" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_3EA4FCFC3CC8C4259F6ADEF5813AEA66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_005A02C8A4F473E1E9DADEF5813A50B3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_005A02C8A4F473E1E9DADEF5813A50B3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LandfillClosureCharge" xlink:label="loc_cwst_LandfillClosureCharge_5CFEA638E782B0AD1135DEF5813BD21C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_cwst_LandfillClosureCharge_5CFEA638E782B0AD1135DEF5813BD21C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureAcquisitionFinancingCosts" xlink:label="loc_cwst_DivestitureAcquisitionFinancingCosts_5CC24DCC6B432E2C98BDDEF5813B1FB9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_cwst_DivestitureAcquisitionFinancingCosts_5CC24DCC6B432E2C98BDDEF5813B1FB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationExpense" xlink:label="loc_us-gaap_EnvironmentalRemediationExpense_77B92F0F14078C0F4DB1DEF5813B0E07" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_us-gaap_EnvironmentalRemediationExpense_77B92F0F14078C0F4DB1DEF5813B0E07" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ContractSettlementCharge" xlink:label="loc_cwst_ContractSettlementCharge_0CBC13E52DAA6F755C6BDEF5813B99D5" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_cwst_ContractSettlementCharge_0CBC13E52DAA6F755C6BDEF5813B99D5" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureTransactions" xlink:label="loc_cwst_DivestitureTransactions_32E9686C9C6AFA240B43DEF5813B05BC" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_cwst_DivestitureTransactions_32E9686C9C6AFA240B43DEF5813B05BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_9857712FECCA5BD5A1AADEF5813BF90D" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_A113D7BDA9A3DF055446DEF5813A288F" xlink:to="loc_us-gaap_CostsAndExpenses_9857712FECCA5BD5A1AADEF5813BF90D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_C24858DE8B6B2A610C56DEF5813B448C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_OperatingIncomeLoss_C24858DE8B6B2A610C56DEF5813B448C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeOther" xlink:label="loc_us-gaap_InterestIncomeOther_B15845B63E8D0A1411B6DEF5813B65E8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_InterestIncomeOther_B15845B63E8D0A1411B6DEF5813B65E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_01B31E1CF08605CD1006DEF5813B3DB1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_InterestExpense_01B31E1CF08605CD1006DEF5813B3DB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_52F7C1DEFB72962C3F90DEF5813CCCC4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_52F7C1DEFB72962C3F90DEF5813CCCC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_B540EE58B60660637795DEF5813CCBBF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_B540EE58B60660637795DEF5813CCBBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="loc_us-gaap_ImpairmentOfInvestments_4F7A6D10808CA6252E43DEF5813C1EAC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_ImpairmentOfInvestments_4F7A6D10808CA6252E43DEF5813C1EAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome_E73F79D29B4E91BE1641DEF5813D8766" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_OtherNonoperatingIncome_E73F79D29B4E91BE1641DEF5813D8766" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_588AD443DDEA1104B497DEF5813D323C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NonoperatingIncomeExpenseAbstract_F96723D7BC62B8195D52DEF5813B782E" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_588AD443DDEA1104B497DEF5813D323C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_B45498AA092EAE241ABFDEF5813D0BE8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_B45498AA092EAE241ABFDEF5813D0BE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_BC7715A05B7529689DCCDEF5813D6482" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_BC7715A05B7529689DCCDEF5813D6482" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_2319650FA8A8FD40F153DEF5813DE6BB" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_ProfitLoss_2319650FA8A8FD40F153DEF5813DE6BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_D1A36058CB0FC2FA7150DEF5813D4312" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_D1A36058CB0FC2FA7150DEF5813D4312" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_864353603EC248290557DEF5813DBD55" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_NetIncomeLoss_864353603EC248290557DEF5813DBD55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAbstract" xlink:label="loc_us-gaap_NetIncomeLossAbstract_1CE4FB5145A345041088DEF5813D0646" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_NetIncomeLossAbstract_1CE4FB5145A345041088DEF5813D0646" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_DF9351EE94B0820AAE2FDEF5813D468E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetIncomeLossAbstract_1CE4FB5145A345041088DEF5813D0646" xlink:to="loc_us-gaap_NetIncomeLoss_DF9351EE94B0820AAE2FDEF5813D468E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_34172EF7ADFCD5CB1B7EDEF5813D1C5C" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_34172EF7ADFCD5CB1B7EDEF5813D1C5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_E6A9A9262B12ABD52839DEF5813E2AC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_34172EF7ADFCD5CB1B7EDEF5813D1C5C" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_E6A9A9262B12ABD52839DEF5813E2AC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_219609922BA1EA2E6F8DDEF5813E1788" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_EE2070C3B3E9D3E95F3CDEF5813A63AE" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_219609922BA1EA2E6F8DDEF5813E1788" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDiluted_D54F268C8A3680EF2ECBDEF5813EC021" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_219609922BA1EA2E6F8DDEF5813E1788" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDiluted_D54F268C8A3680EF2ECBDEF5813EC021" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/DivestitureTransactions" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_39F4F7715E05EEB2E0B076D6FB4035A0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_0E40847EC5C5D6C5C0AF76D6FB40B368" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_39F4F7715E05EEB2E0B076D6FB4035A0" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_0E40847EC5C5D6C5C0AF76D6FB40B368" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/DivestitureTransactionsDivestitureTransactionsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_5CFF3E989CBE7670B6D276D6FB184B53" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_5CFF3E989CBE7670B6D276D6FB184B53" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationAxis" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_ED826A1D1291AAE4DCF276D6FB186FFA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_ED826A1D1291AAE4DCF276D6FB186FFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupClassificationDomain" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_AF8A867D3C86BAC57A4F76D6FB18ECAC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_ED826A1D1291AAE4DCF276D6FB186FFA" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_AF8A867D3C86BAC57A4F76D6FB18ECAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationsMember" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationsMember_96E34601A63F0E9D814976D6FB190F46" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_AF8A867D3C86BAC57A4F76D6FB18ECAC" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationsMember_96E34601A63F0E9D814976D6FB190F46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember" xlink:label="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_C7A6C45752ABF9440FB176D6FB1995E6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_AF8A867D3C86BAC57A4F76D6FB18ECAC" xlink:to="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_C7A6C45752ABF9440FB176D6FB1995E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_EAA36DC55BB92905773D76D6FB19C5D2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_EAA36DC55BB92905773D76D6FB19C5D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_9038243BCBCC3EAC676176D6FB1983BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_EAA36DC55BB92905773D76D6FB19C5D2" xlink:to="loc_us-gaap_SegmentDomain_9038243BCBCC3EAC676176D6FB1983BC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_WesternRegionMember" xlink:label="loc_cwst_WesternRegionMember_0A91F707A43169E6F73076D6FB199355" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_9038243BCBCC3EAC676176D6FB1983BC" xlink:to="loc_cwst_WesternRegionMember_0A91F707A43169E6F73076D6FB199355" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_7D375FFACBD944D709B676D6FB19B5BD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_7D375FFACBD944D709B676D6FB19B5BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19B33B36D4CE734DD7D676D6FB1A7D0D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_7D375FFACBD944D709B676D6FB19B5BD" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19B33B36D4CE734DD7D676D6FB1A7D0D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MaineEnergyFacilityMember" xlink:label="loc_cwst_MaineEnergyFacilityMember_84602D1C6C227BB0252776D6FB1A18F5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_19B33B36D4CE734DD7D676D6FB1A7D0D" xlink:to="loc_cwst_MaineEnergyFacilityMember_84602D1C6C227BB0252776D6FB1A18F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4FD3E26F6C5E33B9186C76D6FB1A5E35" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4FD3E26F6C5E33B9186C76D6FB1A5E35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_4E9B730A87DF6916503376D6FB1A3E57" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_4FD3E26F6C5E33B9186C76D6FB1A5E35" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_4E9B730A87DF6916503376D6FB1A3E57" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CasellaAltelaRegionalEnvironmentalServicesLlcMember" xlink:label="loc_cwst_CasellaAltelaRegionalEnvironmentalServicesLlcMember_7C8AB0D19B5469E01CB276D6FB1A3D3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_4E9B730A87DF6916503376D6FB1A3E57" xlink:to="loc_cwst_CasellaAltelaRegionalEnvironmentalServicesLlcMember_7C8AB0D19B5469E01CB276D6FB1A3D3F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CaresMember" xlink:label="loc_cwst_CaresMember_19CF22E4054313F982E276D6FB1A5F23" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_4E9B730A87DF6916503376D6FB1A3E57" xlink:to="loc_cwst_CaresMember_19CF22E4054313F982E276D6FB1A5F23" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AltelaIncMember" xlink:label="loc_cwst_AltelaIncMember_D5C2C4E6CBFF396C5B6E76D6FB1A3DCC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_4E9B730A87DF6916503376D6FB1A3E57" xlink:to="loc_cwst_AltelaIncMember_D5C2C4E6CBFF396C5B6E76D6FB1A3DCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2D3D665909C76431295276D6FB1A65A8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2D3D665909C76431295276D6FB1A65A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1733044CA9249637D87A76D6FB1A7436" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_2D3D665909C76431295276D6FB1A65A8" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1733044CA9249637D87A76D6FB1A7436" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentOtherTypesMember" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_66C0099822C4988DA8DD76D6FB1A342D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_1733044CA9249637D87A76D6FB1A7436" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentOtherTypesMember_66C0099822C4988DA8DD76D6FB1A342D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_59A1E759680F5D15F23076D6FB18E187" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureAmountBusinessConsiderationReceived" xlink:label="loc_cwst_DivestitureAmountBusinessConsiderationReceived_EE559A29CEE6A89D097B76D6FB1A3700" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_cwst_DivestitureAmountBusinessConsiderationReceived_EE559A29CEE6A89D097B76D6FB1A3700" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_C0FA2025B5CF2891FDB176D6FB1AFD19" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_C0FA2025B5CF2891FDB176D6FB1AFD19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_DB953051D6D07B431EAE76D6FB1A6359" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_DB953051D6D07B431EAE76D6FB1A6359" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PeriodOverWhichConsiderationForSaleOfDisposalGroupAssetsToBeReceived" xlink:label="loc_cwst_PeriodOverWhichConsiderationForSaleOfDisposalGroupAssetsToBeReceived_3767B43E0CFB6726BA2376D6FB1BD50C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_cwst_PeriodOverWhichConsiderationForSaleOfDisposalGroupAssetsToBeReceived_3767B43E0CFB6726BA2376D6FB1BD50C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureTransactions" xlink:label="loc_cwst_DivestitureTransactions_0C6C2E31425B84F9975476D6FB1BC7E2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_cwst_DivestitureTransactions_0C6C2E31425B84F9975476D6FB1BC7E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherAccruedLiabilitiesCurrent_F86DD6DE27A5B6A15CCD76D6FB1BE56D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_OtherAccruedLiabilitiesCurrent_F86DD6DE27A5B6A15CCD76D6FB1BE56D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_5E9254DEC714B587282576D6FB1BF8BB" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_5E9254DEC714B587282576D6FB1BF8BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_ECC1ACB46F9E5530D36C76D6FB1B58BC" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_AssetImpairmentCharges_ECC1ACB46F9E5530D36C76D6FB1B58BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets_BD7E8D6B3AAC534FEA0E76D6FB1B7842" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets_BD7E8D6B3AAC534FEA0E76D6FB1B7842" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_5619994A6C4034A18F2676D6FB1BCCF2" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_99A3EE4C10EE39A6525876D6FB1A681A" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_5619994A6C4034A18F2676D6FB1BCCF2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DocumentAndEntityInformationAbstract" xlink:label="loc_cwst_DocumentAndEntityInformationAbstract_F64EEE46A787C36CA5B376D6FA9D717C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_F43405D5AF241E42944976D6FA9D8C46" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cwst_DocumentAndEntityInformationAbstract_F64EEE46A787C36CA5B376D6FA9D717C" xlink:to="loc_dei_DocumentInformationTable_F43405D5AF241E42944976D6FA9D8C46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_32D695CDF5ED203CDBDE76D6FA9D6093" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_F43405D5AF241E42944976D6FA9D8C46" xlink:to="loc_us-gaap_StatementClassOfStockAxis_32D695CDF5ED203CDBDE76D6FA9D6093" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_A02B47F089459BE211A876D6FA9D741A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_32D695CDF5ED203CDBDE76D6FA9D6093" xlink:to="loc_us-gaap_ClassOfStockDomain_A02B47F089459BE211A876D6FA9D741A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_7156F3D2407DEB27F3B976D6FA9DE13F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_A02B47F089459BE211A876D6FA9D741A" xlink:to="loc_us-gaap_CommonClassAMember_7156F3D2407DEB27F3B976D6FA9DE13F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_C80B4A63046BFC8107E176D6FA9D1073" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_A02B47F089459BE211A876D6FA9D741A" xlink:to="loc_us-gaap_CommonClassBMember_C80B4A63046BFC8107E176D6FA9D1073" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_F43405D5AF241E42944976D6FA9D8C46" xlink:to="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_034F8B56ED83656DAF5376D6FA9D43F3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityRegistrantName_034F8B56ED83656DAF5376D6FA9D43F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_E0ED8F26390BF195885B76D6FA9DD333" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityCentralIndexKey_E0ED8F26390BF195885B76D6FA9DD333" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_092DA814267A7D91FD8276D6FA9D8044" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_CurrentFiscalYearEndDate_092DA814267A7D91FD8276D6FA9D8044" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_5763333C82B57C5416B976D6FA9D8719" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityFilerCategory_5763333C82B57C5416B976D6FA9D8719" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_282A00CB9D0FFA9227F276D6FA9E2788" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_DocumentType_282A00CB9D0FFA9227F276D6FA9E2788" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_21C90DFEC5EFCB32B90476D6FA9E497C" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_DocumentPeriodEndDate_21C90DFEC5EFCB32B90476D6FA9E497C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_71AAB9A2522C025A10DD76D6FA9ECD01" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_DocumentFiscalYearFocus_71AAB9A2522C025A10DD76D6FA9ECD01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_A48952C0FB9743D78DC276D6FA9EBCE0" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_DocumentFiscalPeriodFocus_A48952C0FB9743D78DC276D6FA9EBCE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_E9A347A3FC34770D2FB676D6FA9E61DD" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_AmendmentFlag_E9A347A3FC34770D2FB676D6FA9E61DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_065FCDA7B311C13D060B76D6FA9E66BE" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_TradingSymbol_065FCDA7B311C13D060B76D6FA9E66BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_EACAF4E71F02B9A2C42076D6FA9E325C" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_EACAF4E71F02B9A2C42076D6FA9E325C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_E5130092318270656C3476D6FA9EB8C9" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityCurrentReportingStatus_E5130092318270656C3476D6FA9EB8C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_68D933213D2E3DFE692776D6FA9E6428" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityVoluntaryFilers_68D933213D2E3DFE692776D6FA9E6428" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_7AE63562EAB565FDFB8176D6FA9E1487" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityPublicFloat_7AE63562EAB565FDFB8176D6FA9E1487" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_41C62C5B3C1C17223A6476D6FA9E7723" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_20957BAD1CB514F269A876D6FA9D2F18" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_41C62C5B3C1C17223A6476D6FA9E7723" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EarningsPerShare" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_9CBEAFBA5306082E36BA76D6FAEDAFFF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_DEF77962D353FDAD71A076D6FAED366B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_9CBEAFBA5306082E36BA76D6FAEDAFFF" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_DEF77962D353FDAD71A076D6FAED366B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EarningsPerShareDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_86901304B6404D837B67DE7856CFBB0A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_9B44848BE4B5D9A4AD4CDE7856CFEE48" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_86901304B6404D837B67DE7856CFBB0A" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_9B44848BE4B5D9A4AD4CDE7856CFEE48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_C2CC9674E630FB5B7DC1DE7856CF929D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_9B44848BE4B5D9A4AD4CDE7856CFEE48" xlink:to="loc_us-gaap_StatementClassOfStockAxis_C2CC9674E630FB5B7DC1DE7856CF929D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_287012E17BDB23F316BDDE7856CFDCAF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_C2CC9674E630FB5B7DC1DE7856CF929D" xlink:to="loc_us-gaap_ClassOfStockDomain_287012E17BDB23F316BDDE7856CFDCAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_54FB92899B8CF820FD56DE7856D058DE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_287012E17BDB23F316BDDE7856CFDCAF" xlink:to="loc_us-gaap_CommonClassAMember_54FB92899B8CF820FD56DE7856D058DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_B6D29DAD1D4B82A94297DE7856D0BED9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_287012E17BDB23F316BDDE7856CFDCAF" xlink:to="loc_us-gaap_CommonClassBMember_B6D29DAD1D4B82A94297DE7856D0BED9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDilutedLineItems" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_45073C0D82942B6FD72CDE7856D00934" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_9B44848BE4B5D9A4AD4CDE7856CFEE48" xlink:to="loc_us-gaap_EarningsPerShareDilutedLineItems_45073C0D82942B6FD72CDE7856D00934" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_109E7F43A841810747EDDE7856D0E378" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_45073C0D82942B6FD72CDE7856D00934" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_109E7F43A841810747EDDE7856D0E378" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_261F60D16FB5DDC82F44DE7856D01F7C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_109E7F43A841810747EDDE7856D0E378" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_261F60D16FB5DDC82F44DE7856D01F7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_45073C0D82942B6FD72CDE7856D00934" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_42812CAEEA965236CA88DE7856D03939" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_42812CAEEA965236CA88DE7856D03939" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable_B791EE74EC42CCB3DB69DE7856D0CC1B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesContingentlyIssuable_B791EE74EC42CCB3DB69DE7856D0CC1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesIssuedBasic_57C4ADA38493245F5D49DE7856D1BBC3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesIssuedBasic_57C4ADA38493245F5D49DE7856D1BBC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_015615029D0D7EC24ED9DE7856D13BFD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/netLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:to="loc_us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_015615029D0D7EC24ED9DE7856D13BFD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_6961116BF0473850F4D2DE7856D1B951" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract_C5659B67BFD861041E1CDE7856D06D42" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_6961116BF0473850F4D2DE7856D1B951" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EarningsPerShareTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_571EA106ECB9B5FBB2AC76D6F94E00EB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_E7371339B12509B87AB276D6F94ED8D0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_571EA106ECB9B5FBB2AC76D6F94E00EB" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_E7371339B12509B87AB276D6F94ED8D0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EmployeeBenefitPlans" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_EB60C22AABADFF19E6A076D6FAA7ADD9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_5A867E39614638DBE19776D6FAA7AB64" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_EB60C22AABADFF19E6A076D6FAA7ADD9" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_5A867E39614638DBE19776D6FAA7AB64" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EmployeeBenefitPlansEmployeeBenefitPlansTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_ABCF33B6221E16AFBB1F76D6FAA0AB2A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfMultiemployerPlansTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfMultiemployerPlansTableTextBlock_C4C6D3E09CD7CDC8E43976D6FAA07A65" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_ABCF33B6221E16AFBB1F76D6FAA0AB2A" xlink:to="loc_us-gaap_ScheduleOfMultiemployerPlansTableTextBlock_C4C6D3E09CD7CDC8E43976D6FAA07A65" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EmployeeBenefitPlansMultiemployerDefinedBenefitPensionPlanDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_F25F55A8724C5DF27CC776D6FB5E73D0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfMultiemployerPlansTable" xlink:label="loc_us-gaap_ScheduleOfMultiemployerPlansTable_DCB7A1DC5381C6CA838776D6FB5E4F86" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_F25F55A8724C5DF27CC776D6FB5E73D0" xlink:to="loc_us-gaap_ScheduleOfMultiemployerPlansTable_DCB7A1DC5381C6CA838776D6FB5E4F86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanTypeAxis" xlink:label="loc_us-gaap_MultiemployerPlanTypeAxis_F2BCB9AFBAF73816C53676D6FB5EDC89" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_DCB7A1DC5381C6CA838776D6FB5E4F86" xlink:to="loc_us-gaap_MultiemployerPlanTypeAxis_F2BCB9AFBAF73816C53676D6FB5EDC89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansTypeDomain" xlink:label="loc_us-gaap_MultiemployerPlansTypeDomain_11AC999BF8D65B30880F76D6FB5EA876" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanTypeAxis_F2BCB9AFBAF73816C53676D6FB5EDC89" xlink:to="loc_us-gaap_MultiemployerPlansTypeDomain_11AC999BF8D65B30880F76D6FB5EA876" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansPensionMember" xlink:label="loc_us-gaap_MultiemployerPlansPensionMember_47B239EE62B6F8104AA176D6FB5E33B6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlansTypeDomain_11AC999BF8D65B30880F76D6FB5EA876" xlink:to="loc_us-gaap_MultiemployerPlansPensionMember_47B239EE62B6F8104AA176D6FB5E33B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanNameAxis" xlink:label="loc_us-gaap_MultiemployerPlanNameAxis_B06148DBE485A9BFD46176D6FB5E9943" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_DCB7A1DC5381C6CA838776D6FB5E4F86" xlink:to="loc_us-gaap_MultiemployerPlanNameAxis_B06148DBE485A9BFD46176D6FB5E9943" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanNameDomain" xlink:label="loc_us-gaap_MultiemployerPlanNameDomain_95AFCC4D981C6F187FD876D6FB5E26A3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanNameAxis_B06148DBE485A9BFD46176D6FB5E9943" xlink:to="loc_us-gaap_MultiemployerPlanNameDomain_95AFCC4D981C6F187FD876D6FB5E26A3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember" xlink:label="loc_cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember_4D5147CE40D694490AB676D6FB5E74A7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanNameDomain_95AFCC4D981C6F187FD876D6FB5E26A3" xlink:to="loc_cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember_4D5147CE40D694490AB676D6FB5E74A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansLineItems" xlink:label="loc_us-gaap_MultiemployerPlansLineItems_0CE5931496E2CA6A534E76D6FB5FC603" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_DCB7A1DC5381C6CA838776D6FB5E4F86" xlink:to="loc_us-gaap_MultiemployerPlansLineItems_0CE5931496E2CA6A534E76D6FB5FC603" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanContributionsByEmployer" xlink:label="loc_us-gaap_MultiemployerPlanContributionsByEmployer_1457794CCC24CE78579176D6FB5FE3EB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlansLineItems_0CE5931496E2CA6A534E76D6FB5FC603" xlink:to="loc_us-gaap_MultiemployerPlanContributionsByEmployer_1457794CCC24CE78579176D6FB5FE3EB" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/EmployeeBenefitPlansNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_8CE31F0A7814CC86DBCF76D6FB49A825" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable" xlink:label="loc_us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable_95E2AA83725F5F8E202276D6FB4997A8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_8CE31F0A7814CC86DBCF76D6FB49A825" xlink:to="loc_us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable_95E2AA83725F5F8E202276D6FB4997A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_370B135E069CDF9965F776D6FB49647A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable_95E2AA83725F5F8E202276D6FB4997A8" xlink:to="loc_us-gaap_StatementClassOfStockAxis_370B135E069CDF9965F776D6FB49647A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_0BAFB4279703A045F52376D6FB4A311B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_370B135E069CDF9965F776D6FB49647A" xlink:to="loc_us-gaap_ClassOfStockDomain_0BAFB4279703A045F52376D6FB4A311B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_DA429B3E94A27ADD152C76D6FB4A856B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_0BAFB4279703A045F52376D6FB4A311B" xlink:to="loc_us-gaap_CommonClassAMember_DA429B3E94A27ADD152C76D6FB4A856B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems" xlink:label="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEmployeeStockOwnershipPlanESOPDisclosuresTable_95E2AA83725F5F8E202276D6FB4997A8" xlink:to="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DefinedContributionPlanMaximumEmployerMatchPerEmployeePerDollarContribution" xlink:label="loc_cwst_DefinedContributionPlanMaximumEmployerMatchPerEmployeePerDollarContribution_29F384E09F74E835B27676D6FB4A6420" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_cwst_DefinedContributionPlanMaximumEmployerMatchPerEmployeePerDollarContribution_29F384E09F74E835B27676D6FB4A6420" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DefinedContributionPlanEmployerMaximumContributionPerEmployeePerYearAmount" xlink:label="loc_cwst_DefinedContributionPlanEmployerMaximumContributionPerEmployeePerYearAmount_4DC33F9B0C1C5B0480A176D6FB4AC5A6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_cwst_DefinedContributionPlanEmployerMaximumContributionPerEmployeePerYearAmount_4DC33F9B0C1C5B0480A176D6FB4AC5A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_F7FE2A982C05E12062BA76D6FB4AF6BA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1_F7FE2A982C05E12062BA76D6FB4AF6BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_98E193B5BC14318F5D4776D6FB4A8D08" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_98E193B5BC14318F5D4776D6FB4A8D08" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate_A4D674380D4E7BF0E2AA76D6FB4A7892" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate_A4D674380D4E7BF0E2AA76D6FB4A7892" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_062F9308408E47A845B676D6FB4AC64A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_062F9308408E47A845B676D6FB4AC64A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_233CCA954AC1C1514BFC76D6FB4AB190" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresLineItems_422EFF18246F08CF561476D6FB4A43E0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_233CCA954AC1C1514BFC76D6FB4AB190" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FairValueOfFinancialInstruments" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_DB8ACA2416AD0494BD4676D6FB80D119" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_D84DD7509C024F309CAD76D6FB80A961" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_DB8ACA2416AD0494BD4676D6FB80D119" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_D84DD7509C024F309CAD76D6FB80A961" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FairValueOfFinancialInstrumentsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_CBDC48C44F79CF83B14976D6FB23E8BE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_CBDC48C44F79CF83B14976D6FB23E8BE" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_8256A17FC15C8B19467C76D6FB23612B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_8256A17FC15C8B19467C76D6FB23612B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E71CC049A25B7BDE8A0F76D6FB23D277" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_8256A17FC15C8B19467C76D6FB23612B" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E71CC049A25B7BDE8A0F76D6FB23D277" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_BD0D2A692AFCE968535076D6FB23C8CD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E71CC049A25B7BDE8A0F76D6FB23D277" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_BD0D2A692AFCE968535076D6FB23C8CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_95F6F3992C1B83019CFA76D6FB23A5DB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E71CC049A25B7BDE8A0F76D6FB23D277" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_95F6F3992C1B83019CFA76D6FB23A5DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_8FBC165427C3CB873C3476D6FB238180" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E71CC049A25B7BDE8A0F76D6FB23D277" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_8FBC165427C3CB873C3476D6FB238180" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_22078D4A8AAD6142C2D976D6FB242CB6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_22078D4A8AAD6142C2D976D6FB242CB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_2C0AE727C477159A1ED876D6FB24EF9E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_22078D4A8AAD6142C2D976D6FB242CB6" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_2C0AE727C477159A1ED876D6FB24EF9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_CFDCD8E8573D746871D376D6FB2485F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_2C0AE727C477159A1ED876D6FB24EF9E" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_CFDCD8E8573D746871D376D6FB2485F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F052A6DAA2D44E64E73C76D6FB24FF18" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F052A6DAA2D44E64E73C76D6FB24FF18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_32BEE822D505F6D42FD676D6FB248733" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F052A6DAA2D44E64E73C76D6FB24FF18" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_32BEE822D505F6D42FD676D6FB248733" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandfillMember" xlink:label="loc_us-gaap_LandfillMember_C3E87E114E78D8F51D5676D6FB240351" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_32BEE822D505F6D42FD676D6FB248733" xlink:to="loc_us-gaap_LandfillMember_C3E87E114E78D8F51D5676D6FB240351" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1D30254B81E46190B0E276D6FB244EC2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_D71F2B9FDCF84AFEA3E776D6FB23C5A5" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1D30254B81E46190B0E276D6FB244EC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_C10F2CCDCA3EF775D48F76D6FB24D1C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1D30254B81E46190B0E276D6FB244EC2" xlink:to="loc_us-gaap_AssetsAbstract_C10F2CCDCA3EF775D48F76D6FB24D1C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndInvestmentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_228C04BB856A4EF0892276D6FB24AFD5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_C10F2CCDCA3EF775D48F76D6FB24D1C1" xlink:to="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_228C04BB856A4EF0892276D6FB24AFD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_E43B96EDEA49FF6206D076D6FB24484E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_C10F2CCDCA3EF775D48F76D6FB24D1C1" xlink:to="loc_us-gaap_DerivativeAssets_E43B96EDEA49FF6206D076D6FB24484E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_A8A7F5E804B056D4F7A976D6FB24AD1B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_C10F2CCDCA3EF775D48F76D6FB24D1C1" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_A8A7F5E804B056D4F7A976D6FB24AD1B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaap_LiabilitiesAbstract_1727ABDECD9DC6C6BAFD76D6FB24EFA2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1D30254B81E46190B0E276D6FB244EC2" xlink:to="loc_us-gaap_LiabilitiesAbstract_1727ABDECD9DC6C6BAFD76D6FB24EFA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateDerivativeLiabilitiesAtFairValue" xlink:label="loc_us-gaap_InterestRateDerivativeLiabilitiesAtFairValue_57B86AA3140FD9E787FC76D6FB24EABC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAbstract_1727ABDECD9DC6C6BAFD76D6FB24EFA2" xlink:to="loc_us-gaap_InterestRateDerivativeLiabilitiesAtFairValue_57B86AA3140FD9E787FC76D6FB24EABC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FairValueOfFinancialInstrumentsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_36493CA1C28CB8CC5A3076D6FA7B677E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_E5E7D1164E6B3069D5CE76D6FA7B06BF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_36493CA1C28CB8CC5A3076D6FA7B677E" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_E5E7D1164E6B3069D5CE76D6FA7B06BF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FinalCappingClosureAndPostClosureCosts" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_67A85EC57C48DB06DF6576D6FB0F5889" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureTextBlock" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_16C5C0A413339F715F8476D6FB0F5681" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_67A85EC57C48DB06DF6576D6FB0F5889" xlink:to="loc_us-gaap_AssetRetirementObligationDisclosureTextBlock_16C5C0A413339F715F8476D6FB0F5681" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FinalCappingClosureAndPostClosureCostsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_698D78652F4B139DB34576D6FB5688AD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward" xlink:label="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_698D78652F4B139DB34576D6FB5688AD" xlink:to="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_BC95AA5839E1EB2D017976D6FB56DC5D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligation_BC95AA5839E1EB2D017976D6FB56DC5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesIncurred" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_590EE68BBB619050460F76D6FB57B007" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesIncurred_590EE68BBB619050460F76D6FB57B007" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationRevisionOfEstimate" xlink:label="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_F548CE51A3BFBA8914FB76D6FB57B1C2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligationRevisionOfEstimate_F548CE51A3BFBA8914FB76D6FB57B1C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_EE3BFEACE0E406F8A0CF76D6FB57DFAC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_EE3BFEACE0E406F8A0CF76D6FB57DFAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationLiabilitiesSettled" xlink:label="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_824BF4B87910D1ED252B76D6FB578B98" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligationLiabilitiesSettled_824BF4B87910D1ED252B76D6FB578B98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_ACAD9382B6954A37FA7276D6FB57D63E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward_278799384196C6EF04EB76D6FB56E2C3" xlink:to="loc_us-gaap_AssetRetirementObligation_ACAD9382B6954A37FA7276D6FB57D63E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/FinalCappingClosureAndPostClosureCostsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationDisclosureAbstract" xlink:label="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_6CF9B3E3E35AC16F784176D6FB7B5106" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_64221BA45E3774EE855B76D6FB7B9FB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetRetirementObligationDisclosureAbstract_6CF9B3E3E35AC16F784176D6FB7B5106" xlink:to="loc_us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock_64221BA45E3774EE855B76D6FB7B9FB4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/GoodwillAndIntangibleAssets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8D764D8136CCA39EA56D76D6FAE18E2E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_EFB961FA20D9AD89A04676D6FAE1930A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8D764D8136CCA39EA56D76D6FAE18E2E" xlink:to="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_EFB961FA20D9AD89A04676D6FAE1930A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/GoodwillAndIntangibleAssetsComponentsOfIntangibleAssetsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_80E97B804B509387A60276D6FA71204F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_68ACDFB8E56EF71B219476D6FA71C66A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_80E97B804B509387A60276D6FA71204F" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_68ACDFB8E56EF71B219476D6FA71C66A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D6DE3B4E54962D13787576D6FA71DE9D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_68ACDFB8E56EF71B219476D6FA71C66A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D6DE3B4E54962D13787576D6FA71DE9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0CE3133CDD0DE535B5B276D6FA7216CF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_D6DE3B4E54962D13787576D6FA71DE9D" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0CE3133CDD0DE535B5B276D6FA7216CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncompeteAgreementsMember" xlink:label="loc_us-gaap_NoncompeteAgreementsMember_BA642D4B945D7C8B1A7976D6FA72415F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0CE3133CDD0DE535B5B276D6FA7216CF" xlink:to="loc_us-gaap_NoncompeteAgreementsMember_BA642D4B945D7C8B1A7976D6FA72415F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_us-gaap_CustomerListsMember_FD102AC6D8336DAF549876D6FA72BB75" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0CE3133CDD0DE535B5B276D6FA7216CF" xlink:to="loc_us-gaap_CustomerListsMember_FD102AC6D8336DAF549876D6FA72BB75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_2310E2947FAA9752343176D6FA7240AB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_68ACDFB8E56EF71B219476D6FA71C66A" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_2310E2947FAA9752343176D6FA7240AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_71B210D24907E739EE1D76D6FA72E74B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_2310E2947FAA9752343176D6FA7240AB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_71B210D24907E739EE1D76D6FA72E74B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_92A28A6CD0FE02F2E79376D6FA726D9D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_2310E2947FAA9752343176D6FA7240AB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_92A28A6CD0FE02F2E79376D6FA726D9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_407999EBDB260585AAE476D6FA726ABD" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_2310E2947FAA9752343176D6FA7240AB" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_407999EBDB260585AAE476D6FA726ABD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_EA8EBE819DA67518F35676D6FA72C4ED" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_80E97B804B509387A60276D6FA71204F" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_EA8EBE819DA67518F35676D6FA72C4ED" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/GoodwillAndIntangibleAssetsEstimatedFutureAmortizationExpenseDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_CF26BDBE6DD28AAF2D7ECACCE933FADB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_CF26BDBE6DD28AAF2D7ECACCE933FADB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_9DE7726F3A4C8D025189CACCE9339623" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_9DE7726F3A4C8D025189CACCE9339623" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_6560124DF8EFD2897821CACCE933194D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_6560124DF8EFD2897821CACCE933194D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_07AEE2E76E2F2D19A702CACCE9332454" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_07AEE2E76E2F2D19A702CACCE9332454" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_543CE308D1C3ADF4E708CACCE9339C93" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_543CE308D1C3ADF4E708CACCE9339C93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_95EEFE7AE9C1F0B727B5CACCE9334F97" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_A53F7D51B85E7C03C7F3CACCE93375BA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_95EEFE7AE9C1F0B727B5CACCE9334F97" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/GoodwillAndIntangibleAssetsScheduleOfActivityAndBalancesRelatedToGoodwillByReportingSegmentDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_1395A2A2F103EDA020C876D6FACA1813" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_B0D26ACC6DEFA313F26076D6FACA4FC0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_1395A2A2F103EDA020C876D6FACA1813" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_B0D26ACC6DEFA313F26076D6FACA4FC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_3D86403A7ABC95E336A076D6FACAF41F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_B0D26ACC6DEFA313F26076D6FACA4FC0" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_3D86403A7ABC95E336A076D6FACAF41F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_3D86403A7ABC95E336A076D6FACAF41F" xlink:to="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EasternRegionMember" xlink:label="loc_cwst_EasternRegionMember_7099E6C5E3556DEB2C7676D6FACA34B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:to="loc_cwst_EasternRegionMember_7099E6C5E3556DEB2C7676D6FACA34B4" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_WesternRegionMember" xlink:label="loc_cwst_WesternRegionMember_71DF3D9DF7136355F7D576D6FACA9AD7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:to="loc_cwst_WesternRegionMember_71DF3D9DF7136355F7D576D6FACA9AD7" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RecyclingMember" xlink:label="loc_cwst_RecyclingMember_E8A4042EA6D8A14CE1A576D6FACA6102" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:to="loc_cwst_RecyclingMember_E8A4042EA6D8A14CE1A576D6FACA6102" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="loc_us-gaap_AllOtherSegmentsMember_E67DD532C0C2FD2B0EFD76D6FACA0BD1" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_0B2568E48045EEF6899276D6FACA709B" xlink:to="loc_us-gaap_AllOtherSegmentsMember_E67DD532C0C2FD2B0EFD76D6FACA0BD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_F680288AA8DAA429824676D6FACA69F4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_B0D26ACC6DEFA313F26076D6FACA4FC0" xlink:to="loc_us-gaap_GoodwillLineItems_F680288AA8DAA429824676D6FACA69F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_D319B16BAFAA62EA6A0D76D6FACB7416" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillLineItems_F680288AA8DAA429824676D6FACA69F4" xlink:to="loc_us-gaap_GoodwillRollForward_D319B16BAFAA62EA6A0D76D6FACB7416" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_DB5B32049618DFA4863176D6FACB0645" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_D319B16BAFAA62EA6A0D76D6FACB7416" xlink:to="loc_us-gaap_Goodwill_DB5B32049618DFA4863176D6FACB0645" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_346780A4EA998C22972776D6FACB1DF0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_D319B16BAFAA62EA6A0D76D6FACB7416" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_346780A4EA998C22972776D6FACB1DF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_3201044E1269FF44A99176D6FACB2170" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillRollForward_D319B16BAFAA62EA6A0D76D6FACB7416" xlink:to="loc_us-gaap_Goodwill_3201044E1269FF44A99176D6FACB2170" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3ABC282F4E769723EF5076D6FAA5FC79" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGoodwillTextBlock" xlink:label="loc_us-gaap_ScheduleOfGoodwillTextBlock_76E78B52F8F7E8E4810B76D6FAA5F5D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3ABC282F4E769723EF5076D6FAA5FC79" xlink:to="loc_us-gaap_ScheduleOfGoodwillTextBlock_76E78B52F8F7E8E4810B76D6FAA5F5D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_04DE3CAA5ED228D9A47276D6FAA672B2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3ABC282F4E769723EF5076D6FAA5FC79" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_04DE3CAA5ED228D9A47276D6FAA672B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:label="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_95DD30566EAE3A9505F276D6FAA6C5BA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_3ABC282F4E769723EF5076D6FAA5FC79" xlink:to="loc_us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_95DD30566EAE3A9505F276D6FAA6C5BA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_9933EBA23448D9A48D3676D6FAA4DD69" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_A77012A7FCCF7AF3345576D6FAA492D2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_9933EBA23448D9A48D3676D6FAA4DD69" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_A77012A7FCCF7AF3345576D6FAA492D2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:type="locator" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TaxCutsandJobsActof2017ChangeinTaxRateIncomeTaxExpenseBenefit" xlink:label="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIncomeTaxExpenseBenefit_F0658B319D9A3E2ADA34DE78572C1697" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIncomeTaxExpenseBenefit_F0658B319D9A3E2ADA34DE78572C1697" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TaxCutsandJobsActof2017ChangeinTaxRateChangeInValuationAllowanceIncomeTaxBenefitForContinuingOperations" xlink:label="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateChangeInValuationAllowanceIncomeTaxBenefitForContinuingOperations_D4308A2BA78FB6C58DB2DE78572CA8C0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateChangeInValuationAllowanceIncomeTaxBenefitForContinuingOperations_D4308A2BA78FB6C58DB2DE78572CA8C0" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit" xlink:label="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit_64A329CBDDCE2106DEEDDE78572C7E14" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit_64A329CBDDCE2106DEEDDE78572C7E14" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_IncomeTaxSettlement" xlink:label="loc_cwst_IncomeTaxSettlement_6D77B84F581649BC206BDE78572CE8A9" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_IncomeTaxSettlement_6D77B84F581649BC206BDE78572CE8A9" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_IncomeTaxSettlementTaxPaid" xlink:label="loc_cwst_IncomeTaxSettlementTaxPaid_8A8CFF0B2FF4E764F2A7DE78572C4318" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_IncomeTaxSettlementTaxPaid_8A8CFF0B2FF4E764F2A7DE78572C4318" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_IncomeTaxSettlementInterestPaid" xlink:label="loc_cwst_IncomeTaxSettlementInterestPaid_39379004E88B5AE173D0DE78572C9FF5" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_IncomeTaxSettlementInterestPaid_39379004E88B5AE173D0DE78572C9FF5" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PercentageOfPotentialCumulativeLiability" xlink:label="loc_cwst_PercentageOfPotentialCumulativeLiability_95225681D5312285583FDE78572CC0A3" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_PercentageOfPotentialCumulativeLiability_95225681D5312285583FDE78572CC0A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_792317A3C7C6DC8AAB47DE78572DBADE" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_792317A3C7C6DC8AAB47DE78572DBADE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_CD51AEBB33D1A331AAEDDE78572D575D" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_CD51AEBB33D1A331AAEDDE78572D575D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_05CF86DD72DBE2F9EE6ADE78572DEBD6" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_05CF86DD72DBE2F9EE6ADE78572DEBD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_777902264D6D001DDE4ADE78572D8B0F" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_777902264D6D001DDE4ADE78572D8B0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_78460510FCEE738B887DDE78572DE0B9" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_78460510FCEE738B887DDE78572DE0B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness_EDEA14BB6E1BD4D9FFFBDE78572D1873" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness_EDEA14BB6E1BD4D9FFFBDE78572D1873" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_C64339E9A0B02B538E18DE78572D4701" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_C64339E9A0B02B538E18DE78572D4701" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxIncomeTaxExpenseBenefit" xlink:label="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxIncomeTaxExpenseBenefit_332388372E027AD6D534DE78572D4DED" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxIncomeTaxExpenseBenefit_332388372E027AD6D534DE78572D4DED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_3876DA3A50BB3A3739A9DE78572D9DC9" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_3876DA3A50BB3A3739A9DE78572D9DC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit" xlink:label="loc_us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit_9943802548644B02D22BDE78572D4C66" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit_9943802548644B02D22BDE78572D4C66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued_942D923E284F81F50BDBDE78572D9C9B" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued_942D923E284F81F50BDBDE78572D9C9B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued_7988614834E8BFA3C6D5DE78572DF919" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued_7988614834E8BFA3C6D5DE78572DF919" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_5F537B2C889D155B29BCDE78572D82B9" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4FFFBF1702D92A6BE82DDE78572C1C6B" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_5F537B2C889D155B29BCDE78572D82B9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_F230154FB804D5B036CDE7880FA3EAF5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F230154FB804D5B036CDE7880FA3EAF5" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_611AFD280D1D6A9F578BE7880FA3B89B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_611AFD280D1D6A9F578BE7880FA3B89B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_124CBBFDABB6B8734D7BE7880FA38354" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals_124CBBFDABB6B8734D7BE7880FA38354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_7A619498B1EE603929CDE7880FA80EE4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment_7A619498B1EE603929CDE7880FA80EE4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness_FB6F3031B74916A5A84EE7880FA93C6D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness_FB6F3031B74916A5A84EE7880FA93C6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_3CCABE862F8CA0FF0D0DE7880FA9CCF9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax_3CCABE862F8CA0FF0D0DE7880FA9CCF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_F5C578C83ABBB5F40908E7880FA9A1D1" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_F5C578C83ABBB5F40908E7880FA9A1D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_D82D43CE3ECA93FA11DAE7880FA9115C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_D82D43CE3ECA93FA11DAE7880FA9115C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_E7FCCC84821DCD1AD165E7880FA93802" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_E7FCCC84821DCD1AD165E7880FA93802" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_46E44247A37C0F525AF1E7880FA95912" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_46E44247A37C0F525AF1E7880FA95912" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_5B9AC2489CC3096D1D0BE7880FA9C50B" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseAbstract_43FB4447DC917CD8A552E7880FA3C24E" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_5B9AC2489CC3096D1D0BE7880FA9C50B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesAbstract" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_8DFDE2F5DAFE23D484D8E7880FAAC67D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F230154FB804D5B036CDE7880FA3EAF5" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesAbstract_8DFDE2F5DAFE23D484D8E7880FAAC67D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9DAFAA2AEC97992E0500E7880FAA0690" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_8DFDE2F5DAFE23D484D8E7880FAAC67D" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9DAFAA2AEC97992E0500E7880FAA0690" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_6150746702034DB50EC1E7880FAAF369" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_8DFDE2F5DAFE23D484D8E7880FAAC67D" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_6150746702034DB50EC1E7880FAAF369" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_C1745F8C6D4D328426F7E7880FAA7A13" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_8DFDE2F5DAFE23D484D8E7880FAAC67D" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_C1745F8C6D4D328426F7E7880FAA7A13" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_C89944CBFC7815D20651E7880FAAA814" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F230154FB804D5B036CDE7880FA3EAF5" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_C89944CBFC7815D20651E7880FAAA814" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilities" xlink:label="loc_us-gaap_DeferredTaxLiabilities_5647327CAB681A59BF96E7880FAAF8D3" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F230154FB804D5B036CDE7880FA3EAF5" xlink:to="loc_us-gaap_DeferredTaxLiabilities_5647327CAB681A59BF96E7880FAAF8D3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesScheduleOfDifferenceInProvisionBenefitForIncomeTaxesDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_5A8DB55C4F41F87AC1BFDE7857273240" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_5A8DB55C4F41F87AC1BFDE7857273240" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_BFAB1FAD1B411C9326C9DE78572730CB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_BFAB1FAD1B411C9326C9DE78572730CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_7DD5FB33F4A61581472BDE785727611A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_7DD5FB33F4A61581472BDE785727611A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_ABB00390A84D2914DB45DE78572715FC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_ABB00390A84D2914DB45DE78572715FC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit" xlink:label="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit_4B4195ACF194B1401269DE785727A5DE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_cwst_TaxCutsandJobsActof2017ChangeinTaxRateIndefiniteLivedDeferredTaxLiabilityIncomeTaxBenefit_4B4195ACF194B1401269DE785727A5DE" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxAssetsValuationAllowanceIncludingFederalRateChangeAmount" xlink:label="loc_cwst_EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxAssetsValuationAllowanceIncludingFederalRateChangeAmount_97D53EAAACAA90697F55DE785727C083" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_cwst_EffectiveIncomeTaxRateReconciliationChangeinDeferredTaxAssetsValuationAllowanceIncludingFederalRateChangeAmount_97D53EAAACAA90697F55DE785727C083" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EffectiveIncomeTaxRateReconciliationDeductibleStockAwards" xlink:label="loc_cwst_EffectiveIncomeTaxRateReconciliationDeductibleStockAwards_D1CD6D277593A3926C00DE7857273475" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_cwst_EffectiveIncomeTaxRateReconciliationDeductibleStockAwards_D1CD6D277593A3926C00DE7857273475" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCredits_4CC02CA52C45B018D1FDDE78572740AD" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCredits_4CC02CA52C45B018D1FDDE78572740AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpense" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_86383D29373EEC7D754FDE785727ADA4" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpense_86383D29373EEC7D754FDE785727ADA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_6CFA6019CFE3E345D22DDE78572854A2" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_6CFA6019CFE3E345D22DDE78572854A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherReconcilingItems_F1E49ABEA768BD2AA32DDE785728623F" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherReconcilingItems_F1E49ABEA768BD2AA32DDE785728623F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_96EF0A8D2AF4E9E5435BDE7857288FC9" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_33A45E5777295E8F58F7DE78572757FF" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_96EF0A8D2AF4E9E5435BDE7857288FC9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesScheduleOfProvisionBenefitForIncomeTaxesContinuingOperationsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_3AF90466A67CAEE6BA1076D6FB83CCEF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_3AF90466A67CAEE6BA1076D6FB83CCEF" xlink:to="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_48DE435353121A744BF776D6FB83B592" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_48DE435353121A744BF776D6FB83B592" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CurrentFederalDeferredBenefitLossCarryforwards" xlink:label="loc_cwst_CurrentFederalDeferredBenefitLossCarryforwards_A854B0D134050338643676D6FB83495A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:to="loc_cwst_CurrentFederalDeferredBenefitLossCarryforwards_A854B0D134050338643676D6FB83495A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_542C40F29D642E0D9A2176D6FB831890" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_542C40F29D642E0D9A2176D6FB831890" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations_661B05377C606EA6AAD876D6FB839574" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperationsAbstract_E71A37D5148E4DC6E7A176D6FB83B0AB" xlink:to="loc_us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations_661B05377C606EA6AAD876D6FB839574" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_3AF90466A67CAEE6BA1076D6FB83CCEF" xlink:to="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_CCEE1D003744B262098376D6FB834C4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_CCEE1D003744B262098376D6FB834C4A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CurrentStateDeferredBenefitLossCarryforwards" xlink:label="loc_cwst_CurrentStateDeferredBenefitLossCarryforwards_0E08283058DEC4CFE12876D6FB83FB48" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:to="loc_cwst_CurrentStateDeferredBenefitLossCarryforwards_0E08283058DEC4CFE12876D6FB83FB48" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_4BA6ACFFADDD319270C376D6FB843EF8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_4BA6ACFFADDD319270C376D6FB843EF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations" xlink:label="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations_025AE997446C03B94A8E76D6FB8467DF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperationsAbstract_FD5DF82C5FF9D8F6274D76D6FB83C34D" xlink:to="loc_us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations_025AE997446C03B94A8E76D6FB8467DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_771AA4C1FC4CEA4A4F0376D6FB84C673" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_3AF90466A67CAEE6BA1076D6FB83CCEF" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_771AA4C1FC4CEA4A4F0376D6FB84C673" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesScheduleOfReconciliationOfGrossUnrecognizedTaxBenefitsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_F6879E95844ED8A7EC5176D6F95B22F4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_F6879E95844ED8A7EC5176D6F95B22F4" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_718E3322331803C1BEDB76D6F95B1E6D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_718E3322331803C1BEDB76D6F95B1E6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_838C49AEF585355B6E6076D6F95C4D9D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_838C49AEF585355B6E6076D6F95C4D9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_7C7ED92EAAEDA881D5D376D6F95C656A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions_7C7ED92EAAEDA881D5D376D6F95C656A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_6EBEABADE7D672523B4476D6F95CE9CD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_6EBEABADE7D672523B4476D6F95CE9CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_6254BF55ECD7767F26FC76D6F95CDFF5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_6254BF55ECD7767F26FC76D6F95CDFF5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_86E03044080CED49134376D6F95C8D1B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_597F5A4ABA423C31B37276D6F95B950C" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_86E03044080CED49134376D6F95C8D1B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/IncomeTaxesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_410F74FF71EA1A97380476D6FB281A4F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_43E4033903C11C5A268B76D6FB289B4F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_410F74FF71EA1A97380476D6FB281A4F" xlink:to="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_43E4033903C11C5A268B76D6FB289B4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_B4271D35D58245F598F176D6FB28CA30" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_410F74FF71EA1A97380476D6FB281A4F" xlink:to="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_B4271D35D58245F598F176D6FB28CA30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_70A0A3B4496D52E1F79D76D6FB28278A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_410F74FF71EA1A97380476D6FB281A4F" xlink:to="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_70A0A3B4496D52E1F79D76D6FB28278A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_3A1E74B0868F74EFFED276D6FB2850EF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_410F74FF71EA1A97380476D6FB281A4F" xlink:to="loc_us-gaap_ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock_3A1E74B0868F74EFFED276D6FB2850EF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeases" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_DC0DC7BF0777F65BF83C76D6FB371525" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock" xlink:label="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_FCBAFC74F2B0CD3C749176D6FB3760C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_DC0DC7BF0777F65BF83C76D6FB371525" xlink:to="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_FCBAFC74F2B0CD3C749176D6FB3760C1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesComponentsOfInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseDebtExcludingAmortization" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_7DBC09B3791C2E29371D76D6FA6C0A8A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_7DBC09B3791C2E29371D76D6FA6C0A8A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_68165BFACF3831495EFC76D6FA6C5744" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:to="loc_us-gaap_AmortizationOfFinancingCostsAndDiscounts_68165BFACF3831495EFC76D6FA6C5744" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LettersOfCreditFees" xlink:label="loc_cwst_LettersOfCreditFees_5CC1227FCA4DBC0EAAB376D6FA6D500D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:to="loc_cwst_LettersOfCreditFees_5CC1227FCA4DBC0EAAB376D6FA6D500D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestCostsCapitalizedAdjustment" xlink:label="loc_us-gaap_InterestCostsCapitalizedAdjustment_BE650B6C845E8A456CE276D6FA6D0BDE" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:to="loc_us-gaap_InterestCostsCapitalizedAdjustment_BE650B6C845E8A456CE276D6FA6D0BDE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_6D9FD7CC8D706109B87876D6FA6D5307" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_D9C8DFDD9850B049B88976D6FA6C1241" xlink:to="loc_us-gaap_InterestExpense_6D9FD7CC8D706109B87876D6FA6D5307" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesComponentsOfLongTermDebtAndCapitalLeasesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_A8E41194A77E02D9569EDE32BCA64317" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_93C861003ED07AE30778DE32BCA6D8B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_A8E41194A77E02D9569EDE32BCA64317" xlink:to="loc_us-gaap_DebtInstrumentTable_93C861003ED07AE30778DE32BCA6D8B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_DDB213B0BE3E89D976EBDE32BCA6BABA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_93C861003ED07AE30778DE32BCA6D8B4" xlink:to="loc_us-gaap_DebtInstrumentAxis_DDB213B0BE3E89D976EBDE32BCA6BABA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_A8C1E06E4F196DC22BD0DE32BCA60CCE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_DDB213B0BE3E89D976EBDE32BCA6BABA" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_A8C1E06E4F196DC22BD0DE32BCA60CCE" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TermFacilitydueOctober2023TermLoanBFacilityMember" xlink:label="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_C7ACC274028436CF20E6DE32BCA6C32F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_A8C1E06E4F196DC22BD0DE32BCA60CCE" xlink:to="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_C7ACC274028436CF20E6DE32BCA6C32F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_2E103B43CCBE775491C8DE32BCA72647" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_93C861003ED07AE30778DE32BCA6D8B4" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_2E103B43CCBE775491C8DE32BCA72647" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2E103B43CCBE775491C8DE32BCA72647" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember" xlink:label="loc_cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember_95298D5284C6D9D8ADE1DE32BCA701E0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember_95298D5284C6D9D8ADE1DE32BCA701E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_A571AE9BC0BC1D29B289DE32BCA722B8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_us-gaap_SecuredDebtMember_A571AE9BC0BC1D29B289DE32BCA722B8" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFourteenDueTwoThousandFortyFourMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFourteenDueTwoThousandFortyFourMember_976E2065540A9A94154EDE32BCA78044" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFourteenDueTwoThousandFortyFourMember_976E2065540A9A94154EDE32BCA78044" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember" xlink:label="loc_cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember_4670538F742307DE4AA3DE32BCA79041" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember_4670538F742307DE4AA3DE32BCA79041" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member" xlink:label="loc_cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member_BC9B9616B08BEC2C5D80DE32BCA774E6" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member_BC9B9616B08BEC2C5D80DE32BCA774E6" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember_6E7CC5882B2C7A7D8EFEDE32BCA7AC0D" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember_6E7CC5882B2C7A7D8EFEDE32BCA7AC0D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LongTermRevenueBondSeriesTwoThousandThirteenDueTwoThousandThirtySixMember" xlink:label="loc_cwst_LongTermRevenueBondSeriesTwoThousandThirteenDueTwoThousandThirtySixMember_E4135F8C015CB2A039A9DE32BCA74C2A" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_LongTermRevenueBondSeriesTwoThousandThirteenDueTwoThousandThirtySixMember_E4135F8C015CB2A039A9DE32BCA74C2A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondSeriesTwoThousandThirteenDueTwoThousandTwentyNineMember" xlink:label="loc_cwst_RevenueBondSeriesTwoThousandThirteenDueTwoThousandTwentyNineMember_A440B8DB7BAC145CDB8FDE32BCA70E8F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondSeriesTwoThousandThirteenDueTwoThousandTwentyNineMember_A440B8DB7BAC145CDB8FDE32BCA70E8F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember_37346D16AF619061A8FDDE32BCA757DF" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember_37346D16AF619061A8FDDE32BCA757DF" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember_0753A8FC64C4AE58CA21DE32BCA7D4FE" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember_0753A8FC64C4AE58CA21DE32BCA7D4FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsMember" xlink:label="loc_us-gaap_CapitalLeaseObligationsMember_569CA02B4441D5DF6BA3DE32BCA78CF7" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_us-gaap_CapitalLeaseObligationsMember_569CA02B4441D5DF6BA3DE32BCA78CF7" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NotesPayableMember" xlink:label="loc_cwst_NotesPayableMember_48DFD7809CFCB2A8A214DE32BCA7E0E6" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_01A6DCA31F6AFFCB002FDE32BCA7F075" xlink:to="loc_cwst_NotesPayableMember_48DFD7809CFCB2A8A214DE32BCA7E0E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_93C861003ED07AE30778DE32BCA6D8B4" xlink:to="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_9DEA1F8CFAF6D56E9A0ADE32BCA8B808" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_9DEA1F8CFAF6D56E9A0ADE32BCA8B808" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_280CE431142B4DFC4BD8DE32BCA862FF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_DebtAndCapitalLeaseObligations_280CE431142B4DFC4BD8DE32BCA862FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89957B26EA2C32C7FC9FDE32BCA8E677" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89957B26EA2C32C7FC9FDE32BCA8E677" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_47EC3791B965EE87D9DBDE32BCA80599" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities_47EC3791B965EE87D9DBDE32BCA80599" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_21A3EB566A04F3C26DD1DE32BCA8D189" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_21A3EB566A04F3C26DD1DE32BCA8D189" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_2734F6B7D44024ED8FF1DE32BCA8A9E6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_2734F6B7D44024ED8FF1DE32BCA8A9E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_AEEDDDEBBA573DF9B70ADE32BCA8F7BC" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_AEEDDDEBBA573DF9B70ADE32BCA8F7BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscount" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscount_83221DE1496D95E3724EDE32BCA8FEAA" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_7DF9F450EE098C013FC3DE32BCA801B9" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscount_83221DE1496D95E3724EDE32BCA8FEAA" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesCreditFacilityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_C362CB813A6A111A458076D6FA845669" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_C362CB813A6A111A458076D6FA845669" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_0A8757E24D42B0A55ABE76D6FA85D4FC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_0A8757E24D42B0A55ABE76D6FA85D4FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_0A8757E24D42B0A55ABE76D6FA85D4FC" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_F9CD923B2646182DEF7576D6FA8508B4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:to="loc_us-gaap_SecuredDebtMember_F9CD923B2646182DEF7576D6FA8508B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_B84BAB900B7584C6B90976D6FA85F516" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:to="loc_us-gaap_LineOfCreditMember_B84BAB900B7584C6B90976D6FA85F516" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SeniorSubordinatedNotesDueTwoThousandNineteenMember" xlink:label="loc_cwst_SeniorSubordinatedNotesDueTwoThousandNineteenMember_5A2184A6CED4F4DBED9976D6FA85CB6F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:to="loc_cwst_SeniorSubordinatedNotesDueTwoThousandNineteenMember_5A2184A6CED4F4DBED9976D6FA85CB6F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember" xlink:label="loc_cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember_66582CC4238FC15C351B76D6FA857722" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_FAA67B949DEAF652D44076D6FA85861A" xlink:to="loc_cwst_SeniorSecuredAssetBasedRevolvingCreditFacilityDueTwoThousandAndTwentyMember_66582CC4238FC15C351B76D6FA857722" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_AAA534EF9C8B9BD7A93976D6FA85F2DC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_DebtInstrumentAxis_AAA534EF9C8B9BD7A93976D6FA85F2DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_29D9853CB5BB78ED8D3076D6FA857009" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_AAA534EF9C8B9BD7A93976D6FA85F2DC" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_29D9853CB5BB78ED8D3076D6FA857009" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TermFacilitydueOctober2023TermLoanBFacilityMember" xlink:label="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_D4668782025C146348D276D6FA851D24" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_29D9853CB5BB78ED8D3076D6FA857009" xlink:to="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_D4668782025C146348D276D6FA851D24" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevolvingCreditFacilitydueOctober2021Member" xlink:label="loc_cwst_RevolvingCreditFacilitydueOctober2021Member_CBF2DAB7417E0387673476D6FA85ACBC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_29D9853CB5BB78ED8D3076D6FA857009" xlink:to="loc_cwst_RevolvingCreditFacilitydueOctober2021Member_CBF2DAB7417E0387673476D6FA85ACBC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TermLoanFacilityBRepricingAmendmentMember" xlink:label="loc_cwst_TermLoanFacilityBRepricingAmendmentMember_321126F83FCB4D38FDAE76D6FA855A86" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_29D9853CB5BB78ED8D3076D6FA857009" xlink:to="loc_cwst_TermLoanFacilityBRepricingAmendmentMember_321126F83FCB4D38FDAE76D6FA855A86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_C17FCCCA6ADBCB9A8C4D76D6FA85BAC6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_CreditFacilityAxis_C17FCCCA6ADBCB9A8C4D76D6FA85BAC6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_CC92C56A3E581CE3803576D6FA85C5FA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_C17FCCCA6ADBCB9A8C4D76D6FA85BAC6" xlink:to="loc_us-gaap_CreditFacilityDomain_CC92C56A3E581CE3803576D6FA85C5FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_81EAA5EC03B704BB746A76D6FA865E07" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_CC92C56A3E581CE3803576D6FA85C5FA" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_81EAA5EC03B704BB746A76D6FA865E07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LetterOfCreditMember" xlink:label="loc_us-gaap_LetterOfCreditMember_A2A9069F9900E232F51C76D6FA86C563" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_CC92C56A3E581CE3803576D6FA85C5FA" xlink:to="loc_us-gaap_LetterOfCreditMember_A2A9069F9900E232F51C76D6FA86C563" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_09E7586BF524FF207DE776D6FA86221D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_VariableRateAxis_09E7586BF524FF207DE776D6FA86221D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_649D90218D30C12D3D3B76D6FA86AE51" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_09E7586BF524FF207DE776D6FA86221D" xlink:to="loc_us-gaap_VariableRateDomain_649D90218D30C12D3D3B76D6FA86AE51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_EE0D8A808788149E9EF676D6FA86CDBB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_649D90218D30C12D3D3B76D6FA86AE51" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_EE0D8A808788149E9EF676D6FA86CDBB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LondonInterbankOfferedRateLIBORFloorMember" xlink:label="loc_cwst_LondonInterbankOfferedRateLIBORFloorMember_5203ADE2A97FA27ED0AB76D6FA86BDD9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_649D90218D30C12D3D3B76D6FA86AE51" xlink:to="loc_cwst_LondonInterbankOfferedRateLIBORFloorMember_5203ADE2A97FA27ED0AB76D6FA86BDD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BaseRateMember" xlink:label="loc_us-gaap_BaseRateMember_B39AEC12788DDC24E9A176D6FA86E11F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_649D90218D30C12D3D3B76D6FA86AE51" xlink:to="loc_us-gaap_BaseRateMember_B39AEC12788DDC24E9A176D6FA86E11F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_A5D8A1D81A947F3907DF76D6FA86848D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_RangeAxis_A5D8A1D81A947F3907DF76D6FA86848D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_BBDEC7976B4BBBE3204D76D6FA86B318" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_A5D8A1D81A947F3907DF76D6FA86848D" xlink:to="loc_us-gaap_RangeMember_BBDEC7976B4BBBE3204D76D6FA86B318" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_F3918EA3FDCE9D7BF27676D6FA86436A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_BBDEC7976B4BBBE3204D76D6FA86B318" xlink:to="loc_us-gaap_MinimumMember_F3918EA3FDCE9D7BF27676D6FA86436A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_B12A9EE614D3F0A0BC5076D6FA869B88" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_BBDEC7976B4BBBE3204D76D6FA86B318" xlink:to="loc_us-gaap_MaximumMember_B12A9EE614D3F0A0BC5076D6FA869B88" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtCovenantTermsAxis" xlink:label="loc_cwst_DebtCovenantTermsAxis_102A9CCB79B69668881776D6FA8689D2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_cwst_DebtCovenantTermsAxis_102A9CCB79B69668881776D6FA8689D2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtCovenantTermsDomain" xlink:label="loc_cwst_DebtCovenantTermsDomain_0526010EF3AF078EC5A976D6FA86399A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cwst_DebtCovenantTermsAxis_102A9CCB79B69668881776D6FA8689D2" xlink:to="loc_cwst_DebtCovenantTermsDomain_0526010EF3AF078EC5A976D6FA86399A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtInstrumentCovenantComplianceConsolidatedNetLeverageRatioMember" xlink:label="loc_cwst_DebtInstrumentCovenantComplianceConsolidatedNetLeverageRatioMember_FD0EFDCDFE500CFFD4D276D6FA87CB68" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_cwst_DebtCovenantTermsDomain_0526010EF3AF078EC5A976D6FA86399A" xlink:to="loc_cwst_DebtInstrumentCovenantComplianceConsolidatedNetLeverageRatioMember_FD0EFDCDFE500CFFD4D276D6FA87CB68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_8DCB9D219E50F10A466376D6FA85EAA5" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_AB10BABF1F029567A0BA76D6FA870EF6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_AB10BABF1F029567A0BA76D6FA870EF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8B1F8C32864BD28720C276D6FA8764DA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8B1F8C32864BD28720C276D6FA8764DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_B6B16D477ADC0B6D493076D6FA87E234" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_B6B16D477ADC0B6D493076D6FA87E234" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_6571BE356DBDC1941DE376D6FA87FADB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_6571BE356DBDC1941DE376D6FA87FADB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AdditionalRevolverCapacity" xlink:label="loc_cwst_AdditionalRevolverCapacity_20D70F58C5AFBB946DE776D6FA871894" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_cwst_AdditionalRevolverCapacity_20D70F58C5AFBB946DE776D6FA871894" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_351B347CED5FF395B8FD76D6FA87BBA6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DebtInstrumentTerm_351B347CED5FF395B8FD76D6FA87BBA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeBasisSpreadOnVariableRate" xlink:label="loc_us-gaap_DerivativeBasisSpreadOnVariableRate_3145A10DBDB445424E8076D6FA87CE1E" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DerivativeBasisSpreadOnVariableRate_3145A10DBDB445424E8076D6FA87CE1E" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtInstrumentCovenantComplianceNetLeverageRatio" xlink:label="loc_cwst_DebtInstrumentCovenantComplianceNetLeverageRatio_296DB5160AC21623E04976D6FA871BB3" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_cwst_DebtInstrumentCovenantComplianceNetLeverageRatio_296DB5160AC21623E04976D6FA871BB3" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtInstrumentIncreaseDecreaseinBasisSpreadonVariableRate" xlink:label="loc_cwst_DebtInstrumentIncreaseDecreaseinBasisSpreadonVariableRate_6995556048DC5DBC910476D6FA87551A" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_cwst_DebtInstrumentIncreaseDecreaseinBasisSpreadonVariableRate_6995556048DC5DBC910476D6FA87551A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_AA4D85FDC49659E3E49976D6FA87EA37" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_AA4D85FDC49659E3E49976D6FA87EA37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_E54439E043D14268369E76D6FA871D2C" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_E54439E043D14268369E76D6FA871D2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_CB622831B8932CDBE4ED76D6FA87E382" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_359776A881099061FF6776D6FA87E3DC" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_CB622831B8932CDBE4ED76D6FA87E382" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesFairValueOfDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_C984DDCC24D26DCBED9D76D6F94B05A7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_C984DDCC24D26DCBED9D76D6F94B05A7" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_C7D17B85ECE9980AFD7C76D6F94B00E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_C7D17B85ECE9980AFD7C76D6F94B00E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_DCFDD8382FD71C4F7C5576D6F94B3DEA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_C7D17B85ECE9980AFD7C76D6F94B00E6" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_DCFDD8382FD71C4F7C5576D6F94B3DEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E9535C9C8C47D4243DBF76D6F94B4CF8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_DCFDD8382FD71C4F7C5576D6F94B3DEA" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E9535C9C8C47D4243DBF76D6F94B4CF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_7DCBC28D155D8D3738D076D6F94B82E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E9535C9C8C47D4243DBF76D6F94B4CF8" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_7DCBC28D155D8D3738D076D6F94B82E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_4313A324CEE51A6FB9AB76D6F94C35D9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E9535C9C8C47D4243DBF76D6F94B4CF8" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_4313A324CEE51A6FB9AB76D6F94C35D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DCF3BFDB40A267C226A676D6F94CBDC0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DCF3BFDB40A267C226A676D6F94CBDC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9B003F7E2A31CD9FCA0376D6F94C8005" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_DCF3BFDB40A267C226A676D6F94CBDC0" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9B003F7E2A31CD9FCA0376D6F94C8005" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_E34151757389EFA5E19376D6F94CF510" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9B003F7E2A31CD9FCA0376D6F94C8005" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_E34151757389EFA5E19376D6F94CF510" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_CBCE5C5487ECFBC665E976D6F94C8673" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_CBCE5C5487ECFBC665E976D6F94C8673" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_D88186FCABB3F0E2BFD176D6F94CC11F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_CBCE5C5487ECFBC665E976D6F94C8673" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_D88186FCABB3F0E2BFD176D6F94CC11F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_FixedRateBondsMember" xlink:label="loc_cwst_FixedRateBondsMember_58EE61BA0EB7D2C4284476D6F94C123E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_D88186FCABB3F0E2BFD176D6F94CC11F" xlink:to="loc_cwst_FixedRateBondsMember_58EE61BA0EB7D2C4284476D6F94C123E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_0B129361E7C10192D4F976D6F94CA340" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_D88186FCABB3F0E2BFD176D6F94CC11F" xlink:to="loc_us-gaap_SecuredDebtMember_0B129361E7C10192D4F976D6F94CA340" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_B73DAE48556C14B8FD7C76D6F94C6CDC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:to="loc_us-gaap_DebtInstrumentAxis_B73DAE48556C14B8FD7C76D6F94C6CDC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_1F21A7BB82AA91008BC376D6F94C025C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_B73DAE48556C14B8FD7C76D6F94C6CDC" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_1F21A7BB82AA91008BC376D6F94C025C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_TermFacilitydueOctober2023TermLoanBFacilityMember" xlink:label="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_D37228EAB09F01C1E38076D6F94C82E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_1F21A7BB82AA91008BC376D6F94C025C" xlink:to="loc_cwst_TermFacilitydueOctober2023TermLoanBFacilityMember_D37228EAB09F01C1E38076D6F94C82E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3A560137B823846932E676D6F94CF90E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F9C9612CB85A9AA15E7276D6F94B1B01" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3A560137B823846932E676D6F94CF90E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFairValue" xlink:label="loc_us-gaap_DebtInstrumentFairValue_BD645A2B0B62958B1F4B76D6F94CC710" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3A560137B823846932E676D6F94CF90E" xlink:to="loc_us-gaap_DebtInstrumentFairValue_BD645A2B0B62958B1F4B76D6F94CC710" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LinesOfCreditFairValueDisclosure" xlink:label="loc_us-gaap_LinesOfCreditFairValueDisclosure_6E0C93B6EB52F33CD52576D6F94C5F97" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3A560137B823846932E676D6F94CF90E" xlink:to="loc_us-gaap_LinesOfCreditFairValueDisclosure_6E0C93B6EB52F33CD52576D6F94C5F97" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesLossOnDebtExtinguishmentDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_0D1CF57A4F5280C15C8A76D6FA6E8AC1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_E31550860CC25CBB449076D6FA6E3079" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_0D1CF57A4F5280C15C8A76D6FA6E8AC1" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_E31550860CC25CBB449076D6FA6E3079" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesScheduleOfFutureMaturitiesOfDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths_6769A24E9FB3AFA7F63676D6F95EBA8B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths_6769A24E9FB3AFA7F63676D6F95EBA8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo_0986ECA89B6299998ED776D6F95EE234" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo_0986ECA89B6299998ED776D6F95EE234" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree_71A498CB70B529A1063676D6F95F84CF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree_71A498CB70B529A1063676D6F95F84CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour_1A6935D5DB5C711AFD9776D6F95F510B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour_1A6935D5DB5C711AFD9776D6F95F510B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive_D0A5C010E09A86A89A3E76D6F95FC29B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive_D0A5C010E09A86A89A3E76D6F95FC29B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive_FC653A769CDAFDD868E076D6F95FDAFC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive_FC653A769CDAFDD868E076D6F95FDAFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_7FA5E4541870CE40DB9776D6F95FC62F" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_88DCAB2406D0B06E0D7976D6F95E1BF4" xlink:to="loc_us-gaap_DebtAndCapitalLeaseObligations_7FA5E4541870CE40DB9776D6F95FC62F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_C7DCCA322F656C371A8976D6FB7539AE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_2A474437BDE2055A294A76D6FB754FB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_C7DCCA322F656C371A8976D6FB7539AE" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_2A474437BDE2055A294A76D6FB754FB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock" xlink:label="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_C4FA8EA753D0CF83B53376D6FB75FFF0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_C7DCCA322F656C371A8976D6FB7539AE" xlink:to="loc_us-gaap_InterestIncomeAndInterestExpenseDisclosureTableTextBlock_C4FA8EA753D0CF83B53376D6FB75FFF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_E50EEB4D2593DDBEA68D76D6FB75A28E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_C7DCCA322F656C371A8976D6FB7539AE" xlink:to="loc_us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_E50EEB4D2593DDBEA68D76D6FB75A28E" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/LongTermDebtAndCapitalLeasesTaxExemptFinancingsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_721FBA20FC50C452AB9CDE32BC951515" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_E2F46A5F7F5EB0E4E4F4DE32BC956E15" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_721FBA20FC50C452AB9CDE32BC951515" xlink:to="loc_us-gaap_DebtInstrumentTable_E2F46A5F7F5EB0E4E4F4DE32BC956E15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_C022B0FFB4FBE94C4B07DE32BC951833" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_E2F46A5F7F5EB0E4E4F4DE32BC956E15" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_C022B0FFB4FBE94C4B07DE32BC951833" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_C022B0FFB4FBE94C4B07DE32BC951833" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NewYorkBondsTwoThousandSixteenMember" xlink:label="loc_cwst_NewYorkBondsTwoThousandSixteenMember_78E32A9A3B741BAA725CDE32BC95227D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_NewYorkBondsTwoThousandSixteenMember_78E32A9A3B741BAA725CDE32BC95227D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NewYorkBondsMember" xlink:label="loc_cwst_NewYorkBondsMember_B50B701CB6855F393345DE32BC95B642" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_NewYorkBondsMember_B50B701CB6855F393345DE32BC95B642" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember" xlink:label="loc_cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember_DFB946FE4B40E38F96C8DE32BC962295" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_RevenueBondSeriesTwoThousandFourteenRTwoDueTwoThousandFortyFourMember_DFB946FE4B40E38F96C8DE32BC962295" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnsecuredDebtMember" xlink:label="loc_us-gaap_UnsecuredDebtMember_F6E79E06A0AEF5EC4FBEDE32BC96DC0C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_us-gaap_UnsecuredDebtMember_F6E79E06A0AEF5EC4FBEDE32BC96DC0C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember_E456A8F90B5B828BF3E6DE32BC9695C2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFifteenDueTwoThousandThirtyFiveMember_E456A8F90B5B828BF3E6DE32BC9695C2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_FixedRateBondsMember" xlink:label="loc_cwst_FixedRateBondsMember_969942E64305D6046557DE32BC9605DB" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_FixedRateBondsMember_969942E64305D6046557DE32BC9605DB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NewHampshireBondsMember" xlink:label="loc_cwst_NewHampshireBondsMember_7F2D564DD91DAC0E8569DE32BC968611" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_391E6DCF4DD317944615DE32BC959213" xlink:to="loc_cwst_NewHampshireBondsMember_7F2D564DD91DAC0E8569DE32BC968611" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_6373895F024EBA859CE8DE32BC96DFB3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_E2F46A5F7F5EB0E4E4F4DE32BC956E15" xlink:to="loc_us-gaap_DebtInstrumentAxis_6373895F024EBA859CE8DE32BC96DFB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentAxis_6373895F024EBA859CE8DE32BC96DFB3" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember_55616959CECE82173A34DE32BC96C9F9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFiveRoneDueTwoThousandTwentyFiveMember_55616959CECE82173A34DE32BC96C9F9" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember" xlink:label="loc_cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember_C60E37F9016B0FB3C1DEDE32BC96450F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:to="loc_cwst_RevenueBondsSeriesTwoThousandFiveRtwoDueTwoThousandTwentyFiveMember_C60E37F9016B0FB3C1DEDE32BC96450F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member" xlink:label="loc_cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member_20A0F9D92102222E78F8DE32BC96C5CE" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:to="loc_cwst_FinanceAuthorityofMaineSolidWasteDisposalRevenueBondsSeries2005R3FAMEBonds2005R3Member_20A0F9D92102222E78F8DE32BC96C5CE" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_VermontBondsMember" xlink:label="loc_cwst_VermontBondsMember_EE2D20037EB0F07FCEBDDE32BC96C812" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_FCCE82CF9A9E5A33EB79DE32BC96ACA5" xlink:to="loc_cwst_VermontBondsMember_EE2D20037EB0F07FCEBDDE32BC96C812" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_E2F46A5F7F5EB0E4E4F4DE32BC956E15" xlink:to="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_B35D521063343F698405DE32BC96AA82" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_B35D521063343F698405DE32BC96AA82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_56ED068ADA5824FF9DE1DE32BC96A33C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_56ED068ADA5824FF9DE1DE32BC96A33C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_7916633C78213CAE59A5DE32BC962DA0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_7916633C78213CAE59A5DE32BC962DA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_D80835AECE2527AD7B9DDE32BC963548" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:to="loc_us-gaap_DebtAndCapitalLeaseObligations_D80835AECE2527AD7B9DDE32BC963548" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DebtInstrumentAdditionalBorrowingsFeature" xlink:label="loc_cwst_DebtInstrumentAdditionalBorrowingsFeature_B6CBF3B89C262FFF0D88DE32BC961144" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_B81D45C22A7D30C1BDECDE32BC9696F2" xlink:to="loc_cwst_DebtInstrumentAdditionalBorrowingsFeature_B6CBF3B89C262FFF0D88DE32BC961144" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/OtherItemsAndCharges" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExtraordinaryAndUnusualItemsAbstract" xlink:label="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_3B11C4435E9BE91D209176D6FB0ED715" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock" xlink:label="loc_us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock_6B90853320C2B776D27B76D6FB0E005C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_3B11C4435E9BE91D209176D6FB0ED715" xlink:to="loc_us-gaap_UnusualOrInfrequentItemsDisclosureTextBlock_6B90853320C2B776D27B76D6FB0E005C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/OtherItemsAndChargesDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExtraordinaryAndUnusualItemsAbstract" xlink:label="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_70CF64DC1E7EF21A8D02DD5FD5D85830" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyTable" xlink:label="loc_us-gaap_SiteContingencyTable_665C23BB74736A79D2F2DD5FD5D8D19B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_70CF64DC1E7EF21A8D02DD5FD5D85830" xlink:to="loc_us-gaap_SiteContingencyTable_665C23BB74736A79D2F2DD5FD5D8D19B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteAxis" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteAxis_B1332762362EA5D45300DD5FD5D80936" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_665C23BB74736A79D2F2DD5FD5D8D19B" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteAxis_B1332762362EA5D45300DD5FD5D80936" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationSiteDomain" xlink:label="loc_us-gaap_EnvironmentalRemediationSiteDomain_771CE3D5402BB03AD3E3DD5FD5D8F5A7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteAxis_B1332762362EA5D45300DD5FD5D80936" xlink:to="loc_us-gaap_EnvironmentalRemediationSiteDomain_771CE3D5402BB03AD3E3DD5FD5D8F5A7" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SouthbridgeLandfillMember" xlink:label="loc_cwst_SouthbridgeLandfillMember_28AFD8BA52C31AE7D22DDD5FD5D8C199" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EnvironmentalRemediationSiteDomain_771CE3D5402BB03AD3E3DD5FD5D8F5A7" xlink:to="loc_cwst_SouthbridgeLandfillMember_28AFD8BA52C31AE7D22DDD5FD5D8C199" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SiteContingencyLineItems" xlink:label="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyTable_665C23BB74736A79D2F2DD5FD5D8D19B" xlink:to="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_0E9AE65F3A39278F316FDD5FD5D86261" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf_0E9AE65F3A39278F316FDD5FD5D86261" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncashProjectAbandonmentCosts" xlink:label="loc_us-gaap_NoncashProjectAbandonmentCosts_98C371081EBA285C4A04DD5FD5D85164" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_us-gaap_NoncashProjectAbandonmentCosts_98C371081EBA285C4A04DD5FD5D85164" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalRemediationExpense" xlink:label="loc_us-gaap_EnvironmentalRemediationExpense_8CD681B1FDBD7AD299EBDD5FD5D87FF2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_us-gaap_EnvironmentalRemediationExpense_8CD681B1FDBD7AD299EBDD5FD5D87FF2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LegalFees" xlink:label="loc_us-gaap_LegalFees_A2F38A00720465ECCFE6DD5FD5D87142" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_us-gaap_LegalFees_A2F38A00720465ECCFE6DD5FD5D87142" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LandfillClosureCharge" xlink:label="loc_cwst_LandfillClosureCharge_86FFD9D0C179FEA8B5F5DD5FD5D840CC" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_cwst_LandfillClosureCharge_86FFD9D0C179FEA8B5F5DD5FD5D840CC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DivestitureAcquisitionFinancingCosts" xlink:label="loc_cwst_DivestitureAcquisitionFinancingCosts_21EDE92D9E8E7DBC65EBDD5FD5D88D6B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_cwst_DivestitureAcquisitionFinancingCosts_21EDE92D9E8E7DBC65EBDD5FD5D88D6B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ContractSettlementCharge" xlink:label="loc_cwst_ContractSettlementCharge_E7472FDB05909E9FFE06DD5FD5D8AA38" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SiteContingencyLineItems_8FB6D638C00ACE1EF03DDD5FD5D86F0C" xlink:to="loc_cwst_ContractSettlementCharge_E7472FDB05909E9FFE06DD5FD5D8AA38" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/OtherItemsAndChargesOtherItemsAndChargesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ExtraordinaryAndUnusualItemsAbstract" xlink:label="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_ABD451272345E34042F176D6FB58D08E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EnvironmentalExitCostsByCostTextBlock" xlink:label="loc_us-gaap_EnvironmentalExitCostsByCostTextBlock_8A27EF746502CC35ADBA76D6FB58525F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ExtraordinaryAndUnusualItemsAbstract_ABD451272345E34042F176D6FB58D08E" xlink:to="loc_us-gaap_EnvironmentalExitCostsByCostTextBlock_8A27EF746502CC35ADBA76D6FB58525F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/PropertyPlantAndEquipment" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_161ABE9AEE3CB2D0258F76D6FB532239" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_0C0367AC55316B211D6076D6FB532B17" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_161ABE9AEE3CB2D0258F76D6FB532239" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_0C0367AC55316B211D6076D6FB532B17" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/PropertyPlantAndEquipmentComponentsOfPropertyPlantAndEquipmentDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_364CC53C8C980566587976D6FB3D8C82" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_02FD55A05C771781659976D6FB3D800F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_364CC53C8C980566587976D6FB3D8C82" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_02FD55A05C771781659976D6FB3D800F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8FCC90796961B7BD597D76D6FB3D6D4B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_02FD55A05C771781659976D6FB3D800F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8FCC90796961B7BD597D76D6FB3D6D4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8FCC90796961B7BD597D76D6FB3D6D4B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_FB45929CD1BF6568D4FC76D6FB3D40F2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_us-gaap_LandMember_FB45929CD1BF6568D4FC76D6FB3D40F2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LandfillsMember" xlink:label="loc_cwst_LandfillsMember_88137F182EA6C76BB81376D6FB3EE015" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_cwst_LandfillsMember_88137F182EA6C76BB81376D6FB3EE015" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LandfillOperatingLeaseMember" xlink:label="loc_cwst_LandfillOperatingLeaseMember_EB7DA72173BE983F440276D6FB3ECEC7" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_cwst_LandfillOperatingLeaseMember_EB7DA72173BE983F440276D6FB3ECEC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_81007105BA2BDF7168CF76D6FB3E5E2F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_81007105BA2BDF7168CF76D6FB3E5E2F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_E955494D57F0092641DE76D6FB3E6F07" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_E955494D57F0092641DE76D6FB3E6F07" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RollingStockMember" xlink:label="loc_cwst_RollingStockMember_2BCB22AD55C0A68EA11476D6FB3ED054" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_cwst_RollingStockMember_2BCB22AD55C0A68EA11476D6FB3ED054" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContainersMember" xlink:label="loc_us-gaap_ContainersMember_07579F153A3D0F78348376D6FB3E52D8" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_F5AE57969767859A757E76D6FB3DD666" xlink:to="loc_us-gaap_ContainersMember_07579F153A3D0F78348376D6FB3E52D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_647D1FB96F7AC2FC495476D6FB3E4A3F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_02FD55A05C771781659976D6FB3D800F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_647D1FB96F7AC2FC495476D6FB3E4A3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_B75A10A93A999D4E088276D6FB3E9707" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_647D1FB96F7AC2FC495476D6FB3E4A3F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_B75A10A93A999D4E088276D6FB3E9707" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_4F29B2C2D7B3AC9B7C4176D6FB3E58CB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_647D1FB96F7AC2FC495476D6FB3E4A3F" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_4F29B2C2D7B3AC9B7C4176D6FB3E58CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_7ED7782DE78323D8A88976D6FB3EE422" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_647D1FB96F7AC2FC495476D6FB3E4A3F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_7ED7782DE78323D8A88976D6FB3EE422" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/PropertyPlantAndEquipmentNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_9FF00A5A12165610B9E476D6FAEF5570" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ACF1C9A9B9496AD9AF76D6FAEF4E6C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_9FF00A5A12165610B9E476D6FAEF5570" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ACF1C9A9B9496AD9AF76D6FAEF4E6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D3C2D47303DD3377FC4076D6FAEFC258" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ACF1C9A9B9496AD9AF76D6FAEF4E6C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D3C2D47303DD3377FC4076D6FAEFC258" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_AD27CC66C6F6212EDF9776D6FAEF3A8A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_D3C2D47303DD3377FC4076D6FAEFC258" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_AD27CC66C6F6212EDF9776D6FAEF3A8A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_LandfillsMember" xlink:label="loc_cwst_LandfillsMember_C20ABD76A4EECA95C77C76D6FAEF0C86" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_AD27CC66C6F6212EDF9776D6FAEF3A8A" xlink:to="loc_cwst_LandfillsMember_C20ABD76A4EECA95C77C76D6FAEF0C86" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2838FB3F8FB20DC2D19F76D6FAF0B62A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_22ACF1C9A9B9496AD9AF76D6FAEF4E6C" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2838FB3F8FB20DC2D19F76D6FAF0B62A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaap_Depreciation_04CCB8F911691BEA635C76D6FAF0B99F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2838FB3F8FB20DC2D19F76D6FAF0B62A" xlink:to="loc_us-gaap_Depreciation_04CCB8F911691BEA635C76D6FAF0B99F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentForAmortization" xlink:label="loc_us-gaap_AdjustmentForAmortization_21275E5A86E4A9FD7A6976D6FAF02DEB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2838FB3F8FB20DC2D19F76D6FAF0B62A" xlink:to="loc_us-gaap_AdjustmentForAmortization_21275E5A86E4A9FD7A6976D6FAF02DEB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DepletionOfLandfillOperatingLeaseObligations" xlink:label="loc_cwst_DepletionOfLandfillOperatingLeaseObligations_495C09CEB78C7D03333876D6FAF00F10" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2838FB3F8FB20DC2D19F76D6FAF0B62A" xlink:to="loc_cwst_DepletionOfLandfillOperatingLeaseObligations_495C09CEB78C7D03333876D6FAF00F10" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/PropertyPlantAndEquipmentTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_1ADCA0A8D6C680E94BD376D6FA7A7CA6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_AE314324A6294B1E149476D6FA7A1180" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_1ADCA0A8D6C680E94BD376D6FA7A7CA6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_AE314324A6294B1E149476D6FA7A1180" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/QuarterlyFinancialInformationUnaudited" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_CE0C960EA82CE5380D6176D6FA761F8A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="loc_us-gaap_QuarterlyFinancialInformationTextBlock_CC5E38E9CB5AC4DA995576D6FA772802" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_CE0C960EA82CE5380D6176D6FA761F8A" xlink:to="loc_us-gaap_QuarterlyFinancialInformationTextBlock_CC5E38E9CB5AC4DA995576D6FA772802" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/QuarterlyFinancialInformationUnauditedDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_2B9CE64B62EA1020C06DDE7856779203" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:to="loc_us-gaap_Revenues_2B9CE64B62EA1020C06DDE7856779203" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_45F2EBD80476CDDA8673DE785677BEB2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:to="loc_us-gaap_OperatingIncomeLoss_45F2EBD80476CDDA8673DE785677BEB2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_DCA31ADA13331B39DCEDDE785677BD36" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:to="loc_us-gaap_ProfitLoss_DCA31ADA13331B39DCEDDE785677BD36" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_E03F1742F526EB19A5D5DE7856773F04" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:to="loc_us-gaap_NetIncomeLoss_E03F1742F526EB19A5D5DE7856773F04" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/netLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_4A2DEA99BB2A197F4383DE7856778E0E" xlink:to="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_DF62664D968DE8DCB0F1DE78567747A7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_DF62664D968DE8DCB0F1DE78567747A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_30441B613B229C531041DE785677C269" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:to="loc_us-gaap_EarningsPerShareBasic_30441B613B229C531041DE785677C269" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3C550C9D2947AA7D8A7DDE785678A02C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_3C550C9D2947AA7D8A7DDE785678A02C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_9CDB4DE13BB5B3ABF85FDE7856787CA2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract_25736DC9F168F48A9FE8DE78567751AB" xlink:to="loc_us-gaap_EarningsPerShareDiluted_9CDB4DE13BB5B3ABF85FDE7856787CA2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/QuarterlyFinancialInformationUnauditedTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_15F859459F6A9F1DA02376D6F9D84598" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_FFE8CB42EE4B657C797976D6F9D90574" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_15F859459F6A9F1DA02376D6F9D84598" xlink:to="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_FFE8CB42EE4B657C797976D6F9D90574" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/RelatedPartyTransactions" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_1B63727457DBC0C844C776D6F9E88356" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_3B5E4F8A5B4C83C57C3576D6F9E8F0D9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_1B63727457DBC0C844C776D6F9E88356" xlink:to="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_3B5E4F8A5B4C83C57C3576D6F9E8F0D9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/RelatedPartyTransactionsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract_113335E9341E3FC60CA976D6FAAE224C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract_113335E9341E3FC60CA976D6FAAE224C" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_21A7A37A5DF3B07DDF5776D6FAAED567" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_21A7A37A5DF3B07DDF5776D6FAAED567" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_3AF8B54BB6140B51CBF976D6FAAEF0DE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_21A7A37A5DF3B07DDF5776D6FAAED567" xlink:to="loc_us-gaap_RelatedPartyDomain_3AF8B54BB6140B51CBF976D6FAAEF0DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffiliatedEntityMember" xlink:label="loc_us-gaap_AffiliatedEntityMember_86760F4606FD85EB2EB776D6FAAE07DB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_3AF8B54BB6140B51CBF976D6FAAEF0DE" xlink:to="loc_us-gaap_AffiliatedEntityMember_86760F4606FD85EB2EB776D6FAAE07DB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RelatedPartyMember" xlink:label="loc_cwst_RelatedPartyMember_C9670F0720AA0AAC024376D6FAAF8C71" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyDomain_3AF8B54BB6140B51CBF976D6FAAEF0DE" xlink:to="loc_cwst_RelatedPartyMember_C9670F0720AA0AAC024376D6FAAF8C71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_53080891B4D820E18F2776D6FAAFCE4A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_53080891B4D820E18F2776D6FAAFCE4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_D5DD751818ECDA6C7D7276D6FAAF8EE1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_53080891B4D820E18F2776D6FAAFCE4A" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_D5DD751818ECDA6C7D7276D6FAAF8EE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsMember" xlink:label="loc_us-gaap_CapitalLeaseObligationsMember_FB54C24799B7CF0C00F676D6FAAFF061" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_D5DD751818ECDA6C7D7276D6FAAF8EE1" xlink:to="loc_us-gaap_CapitalLeaseObligationsMember_FB54C24799B7CF0C00F676D6FAAFF061" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_83311819A1521DB2896D76D6FAAFD8DB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_83311819A1521DB2896D76D6FAAFD8DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_398A55B3E5B960F2D45176D6FAAFC726" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_83311819A1521DB2896D76D6FAAFD8DB" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_398A55B3E5B960F2D45176D6FAAFC726" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandfillMember" xlink:label="loc_us-gaap_LandfillMember_9810149B51975B6D3C2676D6FAAFDA94" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_398A55B3E5B960F2D45176D6FAAFC726" xlink:to="loc_us-gaap_LandfillMember_9810149B51975B6D3C2676D6FAAFDA94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0ACFF0CE35F88A6BC5A176D6FAAE510B" xlink:to="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:label="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_B191C25CFD75CE64F93576D6FAAFA3E0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_B191C25CFD75CE64F93576D6FAAFA3E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:label="loc_us-gaap_AccountsPayableRelatedPartiesCurrent_D47B692DA41C237FD4ED76D6FAAFEDB8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_AccountsPayableRelatedPartiesCurrent_D47B692DA41C237FD4ED76D6FAAFEDB8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueFromRelatedParties" xlink:label="loc_us-gaap_RevenueFromRelatedParties_E18F7618E5E12B781CC876D6FAAF4D3A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_RevenueFromRelatedParties_E18F7618E5E12B781CC876D6FAAF4D3A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NumberOfLeases" xlink:label="loc_cwst_NumberOfLeases_9C04972B138A5C4D1B9D76D6FAAF8C42" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_cwst_NumberOfLeases_9C04972B138A5C4D1B9D76D6FAAF8C42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_2D72EA4E61D6883B479C76D6FAAF47AA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_DebtInstrumentTerm_2D72EA4E61D6883B479C76D6FAAF47AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPayment_6FB8BF1A6AC716ACD30B76D6FAAF844E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPayment_6FB8BF1A6AC716ACD30B76D6FAAF844E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesIncomeStatementAmortizationExpense" xlink:label="loc_us-gaap_CapitalLeasesIncomeStatementAmortizationExpense_ECA281999B1D26EB94FE76D6FAAF241C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_CapitalLeasesIncomeStatementAmortizationExpense_ECA281999B1D26EB94FE76D6FAAF241C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationCashPaidToSettle" xlink:label="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_4B195A09918C56232A3D76D6FAB0A67F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_AssetRetirementObligationCashPaidToSettle_4B195A09918C56232A3D76D6FAB0A67F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligation" xlink:label="loc_us-gaap_AssetRetirementObligation_A15A9ED335D9A94A568276D6FAB02B92" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_64358AA0999FB280AF8676D6FAAF6B3F" xlink:to="loc_us-gaap_AssetRetirementObligation_A15A9ED335D9A94A568276D6FAB02B92" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/RestrictedAssets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="loc_us-gaap_ReceivablesAbstract_C75837CBC12D59FB51A076D6FB264795" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_RestrictedAssetsDisclosureTextBlock_26FB241CDCD7FEFBEF6976D6FB26D546" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_C75837CBC12D59FB51A076D6FB264795" xlink:to="loc_us-gaap_RestrictedAssetsDisclosureTextBlock_26FB241CDCD7FEFBEF6976D6FB26D546" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/RestrictedAssetsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="loc_us-gaap_ReceivablesAbstract_B0D1D7EFE00BB34940BDCACCE94A3C7C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndInvestmentsNoncurrent" xlink:label="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_345ED21032CFC474F9BECACCE94B4FF1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_B0D1D7EFE00BB34940BDCACCE94A3C7C" xlink:to="loc_us-gaap_RestrictedCashAndInvestmentsNoncurrent_345ED21032CFC474F9BECACCE94B4FF1" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/RestrictedAssetsTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="loc_us-gaap_ReceivablesAbstract_1ABFD86D55C4EE757D8276D6FAF17C25" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock_885F4435563832F3EC0076D6FAF1F439" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReceivablesAbstract_1ABFD86D55C4EE757D8276D6FAF17C25" xlink:to="loc_us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock_885F4435563832F3EC0076D6FAF1F439" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ScheduleIiValuationAccounts" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_1E051C4B796E56220E5276D6F98B6A36" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock" xlink:label="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_A3AF4F5E940A0EC8901A76D6F98BECA6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_1E051C4B796E56220E5276D6F98B6A36" xlink:to="loc_us-gaap_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock_A3AF4F5E940A0EC8901A76D6F98BECA6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/ScheduleIiValuationAccountsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsAbstract" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_F1E3B551E21A0F8456B3DD5FD5002AF4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureTable" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_77F6085FB9126228E882DD5FD5009863" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsAbstract_F1E3B551E21A0F8456B3DD5FD5002AF4" xlink:to="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_77F6085FB9126228E882DD5FD5009863" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E59F0315CC867C6A53C8DD5FD500D388" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_77F6085FB9126228E882DD5FD5009863" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E59F0315CC867C6A53C8DD5FD500D388" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_ACBC24A7A709EA29BB4BDD5FD50096CB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_E59F0315CC867C6A53C8DD5FD500D388" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_ACBC24A7A709EA29BB4BDD5FD50096CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsMember" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsMember_BCC5F1504D04D04D2165DD5FD50070F3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_ACBC24A7A709EA29BB4BDD5FD50096CB" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsMember_BCC5F1504D04D04D2165DD5FD50070F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems" xlink:label="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_8BD81FA20C9FA26BC920DD5FD50014C8" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureTable_77F6085FB9126228E882DD5FD5009863" xlink:to="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_8BD81FA20C9FA26BC920DD5FD50014C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ValuationAndQualifyingAccountsDisclosureLineItems_8BD81FA20C9FA26BC920DD5FD50014C8" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_A7A676F30E114F8C924EDD5FD5000E8D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_A7A676F30E114F8C924EDD5FD5000E8D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_B0214F4C10FB88C8D6F4DD5FD502E20A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_B0214F4C10FB88C8D6F4DD5FD502E20A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDeductions" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDeductions_B0A473705FB3DE0B7E34DD5FD502BC1E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDeductions_B0A473705FB3DE0B7E34DD5FD502BC1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesBalance" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_D90DB9CAAD27B36536B8DD5FD5027A7F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_D7FC2959DB0588871121DD5FD500DE24" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_D90DB9CAAD27B36536B8DD5FD5027A7F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SegmentReporting" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_8C981F220C20652B791B76D6FA6AC4E2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_89EE3C09738F10A43A6D76D6FA6A5437" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_8C981F220C20652B791B76D6FA6AC4E2" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_89EE3C09738F10A43A6D76D6FA6A5437" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SegmentReportingSummaryOfFinancialInformationByReportableSegmentDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_786B9E8711013584452E76D6F9EE3F78" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_0C9DB80AAD525FC0177F76D6F9EEC41D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_786B9E8711013584452E76D6F9EE3F78" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_0C9DB80AAD525FC0177F76D6F9EEC41D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_us-gaap_ConsolidationItemsAxis_E9CB4B5815F45BE1DC3576D6F9EE2FB6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_0C9DB80AAD525FC0177F76D6F9EEC41D" xlink:to="loc_us-gaap_ConsolidationItemsAxis_E9CB4B5815F45BE1DC3576D6F9EE2FB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_us-gaap_ConsolidationItemsDomain_938841A3B9730919481776D6F9EE7901" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsAxis_E9CB4B5815F45BE1DC3576D6F9EE2FB6" xlink:to="loc_us-gaap_ConsolidationItemsDomain_938841A3B9730919481776D6F9EE7901" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_E05D6B827DE30F00ED4276D6F9EE9A33" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_938841A3B9730919481776D6F9EE7901" xlink:to="loc_us-gaap_OperatingSegmentsMember_E05D6B827DE30F00ED4276D6F9EE9A33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationEliminationsMember" xlink:label="loc_us-gaap_ConsolidationEliminationsMember_0FC363465FD0CAA0C58476D6F9EEE2B0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConsolidationItemsDomain_938841A3B9730919481776D6F9EE7901" xlink:to="loc_us-gaap_ConsolidationEliminationsMember_0FC363465FD0CAA0C58476D6F9EEE2B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_4B706899645D6899742876D6F9EEFF09" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_0C9DB80AAD525FC0177F76D6F9EEC41D" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_4B706899645D6899742876D6F9EEFF09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_4B706899645D6899742876D6F9EEFF09" xlink:to="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EasternRegionMember" xlink:label="loc_cwst_EasternRegionMember_263247568DB68F8D36DB76D6F9EFCB95" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:to="loc_cwst_EasternRegionMember_263247568DB68F8D36DB76D6F9EFCB95" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_WesternRegionMember" xlink:label="loc_cwst_WesternRegionMember_09FFB500640B8C6539DA76D6F9EF1CE2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:to="loc_cwst_WesternRegionMember_09FFB500640B8C6539DA76D6F9EF1CE2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RecyclingMember" xlink:label="loc_cwst_RecyclingMember_204179C2DBE6712D7DEA76D6F9EF4506" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:to="loc_cwst_RecyclingMember_204179C2DBE6712D7DEA76D6F9EF4506" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="loc_us-gaap_AllOtherSegmentsMember_10C957FE11920DFB0D7376D6F9EFD6EF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_BBEF115FC3BA0978D45076D6F9EF5D11" xlink:to="loc_us-gaap_AllOtherSegmentsMember_10C957FE11920DFB0D7376D6F9EFD6EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_0C9DB80AAD525FC0177F76D6F9EEC41D" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_D60B7E6660D829F5EEC876D6F9EFD151" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_Revenues_D60B7E6660D829F5EEC876D6F9EFD151" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_4C5278D9500DE48228DC76D6F9EF61A6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_4C5278D9500DE48228DC76D6F9EF61A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_EA5320A3E2974CF9EB3876D6F9EFC133" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_OperatingIncomeLoss_EA5320A3E2974CF9EB3876D6F9EFC133" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_CA61612DEF8A0837281476D6F9EF9380" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_CA61612DEF8A0837281476D6F9EF9380" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_E344C68F6FCB40FBD9B776D6F9EFDE25" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_E344C68F6FCB40FBD9B776D6F9EFDE25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_EC779828A0A15ECB22CF76D6F9EF1411" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_Goodwill_EC779828A0A15ECB22CF76D6F9EF1411" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_77B991D6496AFF30B12D76D6F9EFEEB2" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_D15DD220EB5ECB02879876D6F9EFA4EC" xlink:to="loc_us-gaap_Assets_77B991D6496AFF30B12D76D6F9EFEEB2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SegmentReportingSummaryOfRevenueAttributableToServicesProvidedByCompanyDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_08C6A20A5A5F8225026B76D6F9510D39" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_66C7E49BBCE38F847AED76D6F952F619" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_08C6A20A5A5F8225026B76D6F9510D39" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_66C7E49BBCE38F847AED76D6F952F619" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="loc_us-gaap_ProductOrServiceAxis_4D6F7F5DBB6C3961E52876D6F9523538" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_66C7E49BBCE38F847AED76D6F952F619" xlink:to="loc_us-gaap_ProductOrServiceAxis_4D6F7F5DBB6C3961E52876D6F9523538" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductOrServiceAxis_4D6F7F5DBB6C3961E52876D6F9523538" xlink:to="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteOperationsCollectionMember" xlink:label="loc_cwst_SolidWasteOperationsCollectionMember_B4F8788F62C2788A926076D6F952E1BE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_SolidWasteOperationsCollectionMember_B4F8788F62C2788A926076D6F952E1BE" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteOperationsDisposalMember" xlink:label="loc_cwst_SolidWasteOperationsDisposalMember_CF2436DE619F5FC5AC4676D6F952B9D7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_SolidWasteOperationsDisposalMember_CF2436DE619F5FC5AC4676D6F952B9D7" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteOperationsPowerGenerationMember" xlink:label="loc_cwst_SolidWasteOperationsPowerGenerationMember_560B6B10EF5955B929E976D6F9526872" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_SolidWasteOperationsPowerGenerationMember_560B6B10EF5955B929E976D6F9526872" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteOperationsProcessingMember" xlink:label="loc_cwst_SolidWasteOperationsProcessingMember_5D797B2B961E1ED7C2B776D6F952C76F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_SolidWasteOperationsProcessingMember_5D797B2B961E1ED7C2B776D6F952C76F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SolidWasteOperationsMember" xlink:label="loc_cwst_SolidWasteOperationsMember_3A56380A652EFB0E9C4676D6F9522B50" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_SolidWasteOperationsMember_3A56380A652EFB0E9C4676D6F9522B50" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_OrganicsMember" xlink:label="loc_cwst_OrganicsMember_297F6D915108C1D2CEA676D6F952FDDC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_OrganicsMember_297F6D915108C1D2CEA676D6F952FDDC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CustomerSolutionsMember" xlink:label="loc_cwst_CustomerSolutionsMember_F57512ADD7273EE4C91976D6F9536142" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_CustomerSolutionsMember_F57512ADD7273EE4C91976D6F9536142" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RecyclingMember" xlink:label="loc_cwst_RecyclingMember_13AEB189B8D09670B30976D6F953C39A" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ProductsAndServicesDomain_6C68A5DAE442E1D643A976D6F9523560" xlink:to="loc_cwst_RecyclingMember_13AEB189B8D09670B30976D6F953C39A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_D6B577185713E9DD59E076D6F9530C7C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_66C7E49BBCE38F847AED76D6F952F619" xlink:to="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_D6B577185713E9DD59E076D6F9530C7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_A61C48AF3F39DCAC1A0C76D6F953E8C7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_D6B577185713E9DD59E076D6F9530C7C" xlink:to="loc_us-gaap_Revenues_A61C48AF3F39DCAC1A0C76D6F953E8C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_934FB6125EC60164AFA076D6F953C21C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_D6B577185713E9DD59E076D6F9530C7C" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_934FB6125EC60164AFA076D6F953C21C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SegmentReportingTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_us-gaap_SegmentReportingAbstract_A01EE7CE8D1977A0039776D6F954A39A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_80DCAFB4D91EB020472476D6F954EFF7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_A01EE7CE8D1977A0039776D6F954A39A" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_80DCAFB4D91EB020472476D6F954EFF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_1E38492E1A67AFB6ED9E76D6F9542E82" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_A01EE7CE8D1977A0039776D6F954A39A" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock_1E38492E1A67AFB6ED9E76D6F9542E82" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_1E6728228654587BDF8076D6FADF3157" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_4717720CD73AF381035C76D6FADF53A9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_1E6728228654587BDF8076D6FADF3157" xlink:to="loc_us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_4717720CD73AF381035C76D6FADF53A9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquityAccumulatedOtherComprehensiveIncomeLossDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_92AFA2D3C2774FEA3FC7D35C15D9C1DB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_909B20AE4DB7662B8EEAD35C15DAA76B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_92AFA2D3C2774FEA3FC7D35C15D9C1DB" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_909B20AE4DB7662B8EEAD35C15DAA76B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_5FA8D45A7B4092F194B9D35C15DA0674" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_909B20AE4DB7662B8EEAD35C15DAA76B" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_5FA8D45A7B4092F194B9D35C15DA0674" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_86226B6154CFCF136C00D35C15DA3349" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_5FA8D45A7B4092F194B9D35C15DA0674" xlink:to="loc_us-gaap_EquityComponentDomain_86226B6154CFCF136C00D35C15DA3349" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_39EC7FF2521E36841B9AD35C15DAE76D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86226B6154CFCF136C00D35C15DA3349" xlink:to="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_39EC7FF2521E36841B9AD35C15DAE76D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_B87B43F25CF10F621F2ED35C15DAD449" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86226B6154CFCF136C00D35C15DA3349" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_B87B43F25CF10F621F2ED35C15DAD449" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_70D943AB0FC463D92103D35C15DA3AAF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86226B6154CFCF136C00D35C15DA3349" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_70D943AB0FC463D92103D35C15DA3AAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_C0FF0FBF19FF7528BECED35C15DA4914" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_909B20AE4DB7662B8EEAD35C15DAA76B" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_C0FF0FBF19FF7528BECED35C15DA4914" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_C0FF0FBF19FF7528BECED35C15DA4914" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_E59350459A2151636C6ED35C15DAD70E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_E59350459A2151636C6ED35C15DAD70E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_B7CC82170EDC1EC8EE73D35C15DA5823" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_B7CC82170EDC1EC8EE73D35C15DA5823" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_79C41F148C28DA1AF57AD35C15DA8773" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_79C41F148C28DA1AF57AD35C15DA8773" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_881A8628A98FDCE73B4FD35C15DA9DA2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_881A8628A98FDCE73B4FD35C15DA9DA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_BD3270EE518438345E43D35C15DAB756" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_B670C7F2241D01BFB87BD35C15DA2FD7" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_BD3270EE518438345E43D35C15DAB756" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquityNarrativeDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_ACB0D318C7EAD89DB43CB47AEC16E4C7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable" xlink:label="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ACB0D318C7EAD89DB43CB47AEC16E4C7" xlink:to="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_10C18D06138EB550DC0DB47AEC164E50" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_StatementClassOfStockAxis_10C18D06138EB550DC0DB47AEC164E50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_4628ECEE10ED91FE8BFEB47AEC1622D7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_10C18D06138EB550DC0DB47AEC164E50" xlink:to="loc_us-gaap_ClassOfStockDomain_4628ECEE10ED91FE8BFEB47AEC1622D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_5F049CFF8CC8350E6B0AB47AEC16FAF9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_4628ECEE10ED91FE8BFEB47AEC1622D7" xlink:to="loc_us-gaap_CommonClassAMember_5F049CFF8CC8350E6B0AB47AEC16FAF9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_012CA95138D5906A0887B47AEC1660F7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_4628ECEE10ED91FE8BFEB47AEC1622D7" xlink:to="loc_us-gaap_CommonClassBMember_012CA95138D5906A0887B47AEC1660F7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_AED1D98C7CE3CDD1E6FEB47AEC169A18" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_PlanNameAxis_AED1D98C7CE3CDD1E6FEB47AEC169A18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_E66C4148EB47ABEE0E76B47AEC16FCCF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameAxis_AED1D98C7CE3CDD1E6FEB47AEC169A18" xlink:to="loc_us-gaap_PlanNameDomain_E66C4148EB47ABEE0E76B47AEC16FCCF" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_A2016IncentivePlanMember" xlink:label="loc_cwst_A2016IncentivePlanMember_A1B001318F13D3FB2DFEB47AEC1613C2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PlanNameDomain_E66C4148EB47ABEE0E76B47AEC16FCCF" xlink:to="loc_cwst_A2016IncentivePlanMember_A1B001318F13D3FB2DFEB47AEC1613C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_BB73BF313C4655837AA6B47AEC16B352" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_RangeAxis_BB73BF313C4655837AA6B47AEC16B352" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_C7A05E067367F7483D56B47AEC1605CF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_BB73BF313C4655837AA6B47AEC16B352" xlink:to="loc_us-gaap_RangeMember_C7A05E067367F7483D56B47AEC1605CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_5FB25709628F6F55BD5FB47AEC166457" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_C7A05E067367F7483D56B47AEC1605CF" xlink:to="loc_us-gaap_MinimumMember_5FB25709628F6F55BD5FB47AEC166457" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_62A8E242411273E949EAB47AEC168E26" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_C7A05E067367F7483D56B47AEC1605CF" xlink:to="loc_us-gaap_MaximumMember_62A8E242411273E949EAB47AEC168E26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_94FCD7A99D184975CC03B47AEC16FB8B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_C7A05E067367F7483D56B47AEC1605CF" xlink:to="loc_us-gaap_WeightedAverageMember_94FCD7A99D184975CC03B47AEC16FB8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_us-gaap_TitleOfIndividualAxis_02D50B1C84053EADC27AB47AEC1634F2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_TitleOfIndividualAxis_02D50B1C84053EADC27AB47AEC1634F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_880A836566744129F4E0B47AEC167E55" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualAxis_02D50B1C84053EADC27AB47AEC1634F2" xlink:to="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_880A836566744129F4E0B47AEC167E55" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NonEmployeeDirectorMember" xlink:label="loc_cwst_NonEmployeeDirectorMember_CB6A48AE1E5E985DB412B47AEC1721EC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_880A836566744129F4E0B47AEC167E55" xlink:to="loc_cwst_NonEmployeeDirectorMember_CB6A48AE1E5E985DB412B47AEC1721EC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_1B06D9DFCF29DFC9C2FEB47AEC17974B" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_AwardTypeAxis_1B06D9DFCF29DFC9C2FEB47AEC17974B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_1B06D9DFCF29DFC9C2FEB47AEC17974B" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RestrictedStockAwardsMember" xlink:label="loc_cwst_RestrictedStockAwardsMember_225561080800BBA273FCB47AEC176F8F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_RestrictedStockAwardsMember_225561080800BBA273FCB47AEC176F8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_A9C4B2F5CAD761879ED3B47AEC17B37C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_us-gaap_EmployeeStockOptionMember_A9C4B2F5CAD761879ED3B47AEC17B37C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MarketbasedPerformanceStockOptionsMember" xlink:label="loc_cwst_MarketbasedPerformanceStockOptionsMember_0A01EB5F6F697BB9FA32B47AEC1750C1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_MarketbasedPerformanceStockOptionsMember_0A01EB5F6F697BB9FA32B47AEC1750C1" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember" xlink:label="loc_cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember_44067D7D4FDDDAF4DCABB47AEC1788D7" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember_44067D7D4FDDDAF4DCABB47AEC1788D7" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RestrictedStockAndRestrictedStockUnitMember" xlink:label="loc_cwst_RestrictedStockAndRestrictedStockUnitMember_CAA6DAB78693A9854668B47AEC17D4C5" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_RestrictedStockAndRestrictedStockUnitMember_CAA6DAB78693A9854668B47AEC17D4C5" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PerformanceStockUnitMember" xlink:label="loc_cwst_PerformanceStockUnitMember_E5BCD50979D7F5940163B47AEC17CB05" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_PerformanceStockUnitMember_E5BCD50979D7F5940163B47AEC17CB05" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_StockOptionsPerformanceStockUnitsRestrictedStockUnitsAndRestrictedStockMember" xlink:label="loc_cwst_StockOptionsPerformanceStockUnitsRestrictedStockUnitsAndRestrictedStockMember_D35BCBA331E9454F7737B47AEC1723DB" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_StockOptionsPerformanceStockUnitsRestrictedStockUnitsAndRestrictedStockMember_D35BCBA331E9454F7737B47AEC1723DB" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MarketbasedPerformanceStockUnitsMember" xlink:label="loc_cwst_MarketbasedPerformanceStockUnitsMember_FF4513DFCE99F3659F27B47AEC1759E8" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_MarketbasedPerformanceStockUnitsMember_FF4513DFCE99F3659F27B47AEC1759E8" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember" xlink:label="loc_cwst_AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember_467E91E46A471DF7D0C3B47AEC17E1F9" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_B780093A8872BB7DA8F7B47AEC17410F" xlink:to="loc_cwst_AmendedAndRestatedNineteenNinetySevenEmployeeStockPurchasePlanMember_467E91E46A471DF7D0C3B47AEC17E1F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LimitedPartnersCapitalAccountLineItems" xlink:label="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfLimitedPartnersCapitalAccountByClassTable_9F339FC77D0E5F071488B47AEC16FCE6" xlink:to="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_StockholdersEquityVotesperShareHeld" xlink:label="loc_cwst_StockholdersEquityVotesperShareHeld_7FD10AF10571DBCCC515B47AEC170EAE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_cwst_StockholdersEquityVotesperShareHeld_7FD10AF10571DBCCC515B47AEC170EAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_A5733E3FB076A3F60CA2B47AEC17F71C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_A5733E3FB076A3F60CA2B47AEC17F71C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_13826DE11E50415A76FAB47AEC1789FC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_PreferredStockSharesIssued_13826DE11E50415A76FAB47AEC1789FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_96D8241F8383D18882C5B47AEC178581" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_96D8241F8383D18882C5B47AEC178581" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_4ACC001ED0A408E7375BB47AEC171BEA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_4ACC001ED0A408E7375BB47AEC171BEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_732EA7951BFDBE3FFBA5B47AEC176112" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_732EA7951BFDBE3FFBA5B47AEC176112" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_DA8AA572D7DC0B7261B7B47AEC17BBAF" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_DA8AA572D7DC0B7261B7B47AEC17BBAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_42D5CD47B30C9C831E49B47AEC175A07" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_42D5CD47B30C9C831E49B47AEC175A07" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EmployeeServiceShareBasedCompensationTaxProvisionFromExerciseOfStockOptions" xlink:label="loc_cwst_EmployeeServiceShareBasedCompensationTaxProvisionFromExerciseOfStockOptions_35D21A891BF0EF043889B4A7648B03C5" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_cwst_EmployeeServiceShareBasedCompensationTaxProvisionFromExerciseOfStockOptions_35D21A891BF0EF043889B4A7648B03C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_9E4EA48901B756EC2F08B47AEC18C8FE" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_9E4EA48901B756EC2F08B47AEC18C8FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_7040084D94844D31B1DFB47AEC18FD3B" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_7040084D94844D31B1DFB47AEC18FD3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_814F17285F48E38F6939B47AEC18F1E9" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_814F17285F48E38F6939B47AEC18F1E9" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsGrantsinPeriodMonteCarloOptionPricingModelWeightedAverageExercisePrice" xlink:label="loc_cwst_SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsGrantsinPeriodMonteCarloOptionPricingModelWeightedAverageExercisePrice_9302833F4A0C9424AF54B47AEC18548B" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_cwst_SharebasedCompensationArrangementsbySharebasedPaymentAwardOptionsGrantsinPeriodMonteCarloOptionPricingModelWeightedAverageExercisePrice_9302833F4A0C9424AF54B47AEC18548B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_AB0857DA98320A0EE209B47AEC18AA85" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_AB0857DA98320A0EE209B47AEC18AA85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_354896E7ED99E676D082B47AEC186CB9" xlink:type="locator" />
    <link:presentationArc order="15" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_354896E7ED99E676D082B47AEC186CB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_AC86DC6A011AD0610994B47AEC181D3E" xlink:type="locator" />
    <link:presentationArc order="16" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_AC86DC6A011AD0610994B47AEC181D3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_8380EFFAE25036CE9E68B47AEC18BFEF" xlink:type="locator" />
    <link:presentationArc order="17" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_8380EFFAE25036CE9E68B47AEC18BFEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_48E507974510982CB7D8B47AEC18DDE2" xlink:type="locator" />
    <link:presentationArc order="18" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_48E507974510982CB7D8B47AEC18DDE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_9F2452203A7996FECD68B47AEC185D7C" xlink:type="locator" />
    <link:presentationArc order="19" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost_9F2452203A7996FECD68B47AEC185D7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_4E53A3FE4E332D6A1560B47AEC184BBA" xlink:type="locator" />
    <link:presentationArc order="20" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_4E53A3FE4E332D6A1560B47AEC184BBA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_3F71E8ABF54D0DF36AB3B47AEC18C225" xlink:type="locator" />
    <link:presentationArc order="21" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_3F71E8ABF54D0DF36AB3B47AEC18C225" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5C2AC07C9093AB1245B7B47AEC183A64" xlink:type="locator" />
    <link:presentationArc order="22" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5C2AC07C9093AB1245B7B47AEC183A64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_BAD981E1F63403B73F83B4A91A82D68B" xlink:type="locator" />
    <link:presentationArc order="23" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions_BAD981E1F63403B73F83B4A91A82D68B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation_B2494F4CD57EDF00353AB47AEC184B03" xlink:type="locator" />
    <link:presentationArc order="24" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LimitedPartnersCapitalAccountLineItems_DD614A41F2EB88A1617AB47AEC1722F4" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation_B2494F4CD57EDF00353AB47AEC184B03" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquityReclassificationOutOfAccumulatedOtherComprehensiveIncomeLossDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_DE09C27BF703E303D245E455A17F1223" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_DE09C27BF703E303D245E455A17F1223" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_36190392136446256B5BE455A17FADBB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_36190392136446256B5BE455A17FADBB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_76CC868FB1DCDB8DD473E455A17FF4E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_36190392136446256B5BE455A17FADBB" xlink:to="loc_us-gaap_EquityComponentDomain_76CC868FB1DCDB8DD473E455A17FF4E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterestMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterestMember_0F706337FC9DC59EE045E455A17FC918" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_76CC868FB1DCDB8DD473E455A17FF4E2" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromCashFlowHedgesIncludingPortionAttributableToNoncontrollingInterestMember_0F706337FC9DC59EE045E455A17FC918" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_216C095122EE832CD1B1E455A17F8771" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_216C095122EE832CD1B1E455A17F8771" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_586CFAFA0C30C244DADDE455A17F99AF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_216C095122EE832CD1B1E455A17F8771" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_586CFAFA0C30C244DADDE455A17F99AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_3B49E5E0FD6BB8EFE8BFE455A17F39D7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_586CFAFA0C30C244DADDE455A17F99AF" xlink:to="loc_us-gaap_InterestRateSwapMember_3B49E5E0FD6BB8EFE8BFE455A17F39D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_AE9E775762B841BB4087E455A17F226E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_AE9E775762B841BB4087E455A17F226E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_16F809B6C4D4CC8127EFE455A17F3A3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_AE9E775762B841BB4087E455A17F226E" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_16F809B6C4D4CC8127EFE455A17F3A3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_EDD41BDD5D9AC6F4D59DE455A17FC439" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_16F809B6C4D4CC8127EFE455A17F3A3F" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_EDD41BDD5D9AC6F4D59DE455A17FC439" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_397ADB592407806416CBE455A17F9631" xlink:to="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_D14E11FBEB7CB8683793E455A17F25D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:to="loc_us-gaap_InterestExpense_D14E11FBEB7CB8683793E455A17F25D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5E38AB967210F364DB1AE455A1805348" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_5E38AB967210F364DB1AE455A1805348" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_78CC35F467F63C2B8DEAE455A180A03F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_78CC35F467F63C2B8DEAE455A180A03F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_6B3BA6944E554C891CBAE455A1807E7A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_1861AC4221074C1F612EE455A17F0D95" xlink:to="loc_us-gaap_ProfitLoss_6B3BA6944E554C891CBAE455A1807E7A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquityScheduleOfFairValueOfStockOptionsWeightedAverageAssumptionsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_49469C135D42CFCAD57B76D6FA787DE9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_D1F15A44437714AA9D5876D6FA785026" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_49469C135D42CFCAD57B76D6FA787DE9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_D1F15A44437714AA9D5876D6FA785026" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9C87EC84A4AE4A60337F76D6FA78DF83" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_49469C135D42CFCAD57B76D6FA787DE9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9C87EC84A4AE4A60337F76D6FA78DF83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_428459DDD77337E92EA876D6FA78A514" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_49469C135D42CFCAD57B76D6FA787DE9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_428459DDD77337E92EA876D6FA78A514" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquitySummaryOfRestrictedStockRestrictedStockUnitAndPerformanceStockUnitActivityDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_3D51A16880D7FEE8952F76D6F9B1E06F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_943C8B570680FA5D92C476D6F9B1BCCB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_3D51A16880D7FEE8952F76D6F9B1E06F" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_943C8B570680FA5D92C476D6F9B1BCCB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_C11E473EBDADF27D136E76D6F9B15D44" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_943C8B570680FA5D92C476D6F9B1BCCB" xlink:to="loc_us-gaap_StatementClassOfStockAxis_C11E473EBDADF27D136E76D6F9B15D44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_CAD639B6DF7C016674A776D6F9B1CA51" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_C11E473EBDADF27D136E76D6F9B15D44" xlink:to="loc_us-gaap_ClassOfStockDomain_CAD639B6DF7C016674A776D6F9B1CA51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_29C089125FD6FB15031D76D6F9B1E02A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_CAD639B6DF7C016674A776D6F9B1CA51" xlink:to="loc_us-gaap_CommonClassAMember_29C089125FD6FB15031D76D6F9B1E02A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_4656A244A34896C0F2CD76D6F9B14F1C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_943C8B570680FA5D92C476D6F9B1BCCB" xlink:to="loc_us-gaap_AwardTypeAxis_4656A244A34896C0F2CD76D6F9B14F1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D01D31A525F8B491ACB576D6F9B1B38B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_4656A244A34896C0F2CD76D6F9B14F1C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D01D31A525F8B491ACB576D6F9B1B38B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember" xlink:label="loc_cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember_2A0ED29F2BBCBC66DF0B76D6F9B12F4E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D01D31A525F8B491ACB576D6F9B1B38B" xlink:to="loc_cwst_RestrictedStockRestrictedStockUnitsAndPerformanceStockUnitsMember_2A0ED29F2BBCBC66DF0B76D6F9B12F4E" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_PerformanceStockUnitMember" xlink:label="loc_cwst_PerformanceStockUnitMember_75C0E86E4DD43769840376D6F9B1039F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D01D31A525F8B491ACB576D6F9B1B38B" xlink:to="loc_cwst_PerformanceStockUnitMember_75C0E86E4DD43769840376D6F9B1039F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_943C8B570680FA5D92C476D6F9B1BCCB" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_70C5ABE486233B08D4AE76D6F9B2C85E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_70C5ABE486233B08D4AE76D6F9B2C85E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_93E456C40CE167A07E3176D6F9B2136C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_93E456C40CE167A07E3176D6F9B2136C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_852B15FAEED717CBD68E76D6F9B2A82E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_852B15FAEED717CBD68E76D6F9B2A82E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_E834725B6FB5DD96CE0976D6F9B28800" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_E834725B6FB5DD96CE0976D6F9B28800" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_0E3EA1A4846D7E82B27D76D6F9B2B854" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_1B6F2B08639E0D9C3BF176D6F9B22FB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_0E3EA1A4846D7E82B27D76D6F9B2B854" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedNumber" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedNumber_32350CE649FD0F0E3D7276D6F9B25BAD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedNumber_32350CE649FD0F0E3D7276D6F9B25BAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_522B029781AAD08A3D5176D6F9B2BCB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_522B029781AAD08A3D5176D6F9B2BCB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_DB165BDBD3C7308CAC8776D6F9B2E351" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_DB165BDBD3C7308CAC8776D6F9B2E351" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_B5F176269468E1F2BCFC76D6F9B2B79C" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_B5F176269468E1F2BCFC76D6F9B2B79C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_D21153339726504A1CCA76D6F9B25F8C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_D21153339726504A1CCA76D6F9B25F8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D05CA1A0E85918DB658476D6F9B25598" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5169738D4B397CDAD10476D6F9B27593" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D05CA1A0E85918DB658476D6F9B25598" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedWeightedAverageGrantDateFairValue" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedWeightedAverageGrantDateFairValue_4F0DDF1D1706999F513276D6F9B2EBD4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsUnvestedWeightedAverageGrantDateFairValue_4F0DDF1D1706999F513276D6F9B2EBD4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_FD0730440118814DBE5F76D6F9B2CAEF" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_FD0730440118814DBE5F76D6F9B2CAEF" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageRemainingContractualTerm" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageRemainingContractualTerm_65EFC8F5BCF45C88CA7B76D6F9B21A47" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedWeightedAverageRemainingContractualTerm_65EFC8F5BCF45C88CA7B76D6F9B21A47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_96FB46FC4E85EE7E071A76D6F9B2DFFD" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_96FB46FC4E85EE7E071A76D6F9B2DFFD" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedAggregateIntrinsicValue" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedAggregateIntrinsicValue_0DE492DD3CEB9210341476D6F9B26DBD" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardEquityInstrumentsOtherthanOptionsNonvestedAggregateIntrinsicValue_0DE492DD3CEB9210341476D6F9B26DBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_51DA12B30F3772C982E076D6F9B32F4E" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_51DA12B30F3772C982E076D6F9B32F4E" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AdditionalSharesIssuedMaximumAttainmentLevel" xlink:label="loc_cwst_AdditionalSharesIssuedMaximumAttainmentLevel_A9B8C6807AC60284375276D6F9B36B42" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_3D16A7EA369DF7BBEF4E76D6F9B1D062" xlink:to="loc_cwst_AdditionalSharesIssuedMaximumAttainmentLevel_A9B8C6807AC60284375276D6F9B36B42" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquitySummaryOfStockOptionActivityDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_26CCE93170EB806CAE2876D6F9841E56" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_88E02F9EC7A5F869684476D6F9845A84" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_26CCE93170EB806CAE2876D6F9841E56" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_88E02F9EC7A5F869684476D6F9845A84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_F6E19581FBA87434A5CB76D6F9845354" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_88E02F9EC7A5F869684476D6F9845A84" xlink:to="loc_us-gaap_AwardTypeAxis_F6E19581FBA87434A5CB76D6F9845354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32D1B9B3C2832C3F184D76D6F984AAB4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_F6E19581FBA87434A5CB76D6F9845354" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32D1B9B3C2832C3F184D76D6F984AAB4" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MarketbasedPerformanceStockOptionsMember" xlink:label="loc_cwst_MarketbasedPerformanceStockOptionsMember_0A8BA625978F267FC50D76D6F985F13D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32D1B9B3C2832C3F184D76D6F984AAB4" xlink:to="loc_cwst_MarketbasedPerformanceStockOptionsMember_0A8BA625978F267FC50D76D6F985F13D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_88E02F9EC7A5F869684476D6F9845A84" xlink:to="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_074753A42352990BD15376D6F985A726" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_074753A42352990BD15376D6F985A726" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_149FA5266DB417D8ACF376D6F9850DA0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_149FA5266DB417D8ACF376D6F9850DA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_8B1A631CAC2F7FB9317376D6F985EED9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_8B1A631CAC2F7FB9317376D6F985EED9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_CABF09D5986145D0783676D6F9858FC0" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_CABF09D5986145D0783676D6F9858FC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_10A6F6DAC2E7C9A971AA76D6F985CEF4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_6EB399C1BA51BED5962376D6F985EA0D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_10A6F6DAC2E7C9A971AA76D6F985CEF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_261385AFE3EB6F30D2FB76D6F9853D50" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_261385AFE3EB6F30D2FB76D6F9853D50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_23A0C081EB34F4CED46076D6F985D9F3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_23A0C081EB34F4CED46076D6F985D9F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_EDF38EA227AE85FE306D76D6F9851671" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_EDF38EA227AE85FE306D76D6F9851671" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_8317B44D21F1B13C29A076D6F9850B9D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_8317B44D21F1B13C29A076D6F9850B9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_27A7BCCC1795A10C4D3F76D6F9853EB9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_27A7BCCC1795A10C4D3F76D6F9853EB9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_93BFBCB77875C024A61C76D6F98507AD" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_93BFBCB77875C024A61C76D6F98507AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_F82A116DD893F5926B5E76D6F9851F55" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_052F7A1E9E213AFBE43C76D6F98518FF" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_F82A116DD893F5926B5E76D6F9851F55" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_A72990D97FAD673835E676D6F986D9DA" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_A72990D97FAD673835E676D6F986D9DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_6CBE3F07E8195A652FA876D6F986EA7A" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_6CBE3F07E8195A652FA876D6F986EA7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_58D5FA459403DC01725276D6F9860CF3" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_58D5FA459403DC01725276D6F9860CF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_B4B58B06E06BB9A6484676D6F986891D" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_B4B58B06E06BB9A6484676D6F986891D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedWeightedAverageRemainingContractualTerm" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedWeightedAverageRemainingContractualTerm_73D3E99E19703AC0AEE676D6F986B17A" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedWeightedAverageRemainingContractualTerm_73D3E99E19703AC0AEE676D6F986B17A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_86039EDB32F4D5FAFB5676D6F986C9FC" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_86039EDB32F4D5FAFB5676D6F986C9FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_9E09EAAB8154D89DCD6C76D6F986E817" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_9E09EAAB8154D89DCD6C76D6F986E817" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedAggregateIntrinsicValue" xlink:label="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedAggregateIntrinsicValue_E22D0F40267FEC9277FA76D6F98621AA" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_cwst_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsUnvestedAggregateIntrinsicValue_E22D0F40267FEC9277FA76D6F98621AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_7E02EAE7050A1137D6DB76D6F9868FCA" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_7E02EAE7050A1137D6DB76D6F9868FCA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_C0446D283B51A309239D76D6F98660B0" xlink:type="locator" />
    <link:presentationArc order="14" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_BB20AF994DD9C9D23FF576D6F9850BD7" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_C0446D283B51A309239D76D6F98660B0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/StockholdersEquityTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_39F2E0D0A9EA861D142576D6FB39E97E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_39F2E0D0A9EA861D142576D6FB39E97E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_32D6D83C5E949ADFA73376D6FB39F539" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:to="loc_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_32D6D83C5E949ADFA73376D6FB39F539" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_4BADAA19C907F295502C76D6FB392CA2" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_4BADAA19C907F295502C76D6FB392CA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_F6BA176907735FD36FC276D6FB39CAE4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:to="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_F6BA176907735FD36FC276D6FB39CAE4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_A1D98416F3180AEE31BD76D6FB3928B7" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_F61C0D7DC675AF38E19276D6FB3953FD" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_A1D98416F3180AEE31BD76D6FB3928B7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_203A233E64B59ACD963E76D6F967770E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_D78DFA063FBD5BEC520576D6F967CDFF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_203A233E64B59ACD963E76D6F967770E" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_D78DFA063FBD5BEC520576D6F967CDFF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesAssetImpairmentsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_88054B820BE0B6DC2D7176D6FABC1231" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_60CFD88C238EEB136D0576D6FABC9100" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_88054B820BE0B6DC2D7176D6FABC1231" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_60CFD88C238EEB136D0576D6FABC9100" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_D96B3563FB441E8A732D76D6FABC84FE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_60CFD88C238EEB136D0576D6FABC9100" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_D96B3563FB441E8A732D76D6FABC84FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_D96B3563FB441E8A732D76D6FABC84FE" xlink:to="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_EasternRegionMember" xlink:label="loc_cwst_EasternRegionMember_AC767E4E569B16CBFEE076D6FABC9DA2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:to="loc_cwst_EasternRegionMember_AC767E4E569B16CBFEE076D6FABC9DA2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_WesternRegionMember" xlink:label="loc_cwst_WesternRegionMember_78AA780F4BA83244902076D6FABC4148" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:to="loc_cwst_WesternRegionMember_78AA780F4BA83244902076D6FABC4148" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RecyclingMember" xlink:label="loc_cwst_RecyclingMember_21896517DBA9615D0CD276D6FABC391E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:to="loc_cwst_RecyclingMember_21896517DBA9615D0CD276D6FABC391E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="loc_us-gaap_AllOtherSegmentsMember_70DE05419821DE703BED76D6FABCBD93" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_4AD3F1986731FB76C24276D6FABC791D" xlink:to="loc_us-gaap_AllOtherSegmentsMember_70DE05419821DE703BED76D6FABCBD93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_42CCFD8D2259C2C0EF1E76D6FABC6429" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_60CFD88C238EEB136D0576D6FABC9100" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_42CCFD8D2259C2C0EF1E76D6FABC6429" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_42CCFD8D2259C2C0EF1E76D6FABC6429" xlink:to="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RecycleRewardsIncMember" xlink:label="loc_cwst_RecycleRewardsIncMember_34ED88BFDCC9A67012A476D6FABC3C2F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:to="loc_cwst_RecycleRewardsIncMember_34ED88BFDCC9A67012A476D6FABC3C2F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_GreenerUIncMember" xlink:label="loc_cwst_GreenerUIncMember_CE167768BAB208F6F14176D6FABDAA2B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:to="loc_cwst_GreenerUIncMember_CE167768BAB208F6F14176D6FABDAA2B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AgreenEnergyLlcMember" xlink:label="loc_cwst_AgreenEnergyLlcMember_C6411B2D3F94F33892FB76D6FABD1810" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:to="loc_cwst_AgreenEnergyLlcMember_C6411B2D3F94F33892FB76D6FABD1810" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_BgreenEnergyLlcMember" xlink:label="loc_cwst_BgreenEnergyLlcMember_1250EB2771A640F511F576D6FABD3ABA" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:to="loc_cwst_BgreenEnergyLlcMember_1250EB2771A640F511F576D6FABD3ABA" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_AgreenAndBgreenMember" xlink:label="loc_cwst_AgreenAndBgreenMember_475E1CA974504401027A76D6FABD34E8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvesteeNameDomain_F29ADB9520297D70718676D6FABC61E4" xlink:to="loc_cwst_AgreenAndBgreenMember_475E1CA974504401027A76D6FABD34E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_60CFD88C238EEB136D0576D6FABC9100" xlink:to="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount" xlink:label="loc_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount_40A8BA8D63929D8E9BD876D6FABDDEAE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:to="loc_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount_40A8BA8D63929D8E9BD876D6FABDDEAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_5AE61332FD74970ED26E76D6FABD8C6C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_5AE61332FD74970ED26E76D6FABD8C6C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_CostMethodInvestmentOwnershipPercentage" xlink:label="loc_cwst_CostMethodInvestmentOwnershipPercentage_5B1D37C165D5968375F376D6FABD09B1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:to="loc_cwst_CostMethodInvestmentOwnershipPercentage_5B1D37C165D5968375F376D6FABD09B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="loc_us-gaap_ImpairmentOfInvestments_DFC1F68B74C7BB0CA81576D6FABD38B4" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:to="loc_us-gaap_ImpairmentOfInvestments_DFC1F68B74C7BB0CA81576D6FABD38B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostMethodInvestments" xlink:label="loc_us-gaap_CostMethodInvestments_C3692C1DA20D6CD0DF6D76D6FABE75C3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_499AFD95B9984A33F6D776D6FABD8A92" xlink:to="loc_us-gaap_CostMethodInvestments_C3692C1DA20D6CD0DF6D76D6FABE75C3" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesDefinedBenefitPensionPlanDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_1AF981E0DAC06A61F965D369D0217B67" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfMultiemployerPlansTable" xlink:label="loc_us-gaap_ScheduleOfMultiemployerPlansTable_3CA589A4D18AAFB90BD5D369D14A9AF8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_1AF981E0DAC06A61F965D369D0217B67" xlink:to="loc_us-gaap_ScheduleOfMultiemployerPlansTable_3CA589A4D18AAFB90BD5D369D14A9AF8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanTypeAxis" xlink:label="loc_us-gaap_MultiemployerPlanTypeAxis_14C1ECAA5ED6DCBA1580D36AFFB83249" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_3CA589A4D18AAFB90BD5D369D14A9AF8" xlink:to="loc_us-gaap_MultiemployerPlanTypeAxis_14C1ECAA5ED6DCBA1580D36AFFB83249" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansTypeDomain" xlink:label="loc_us-gaap_MultiemployerPlansTypeDomain_7606C6DFF62C9DD9A30DD36AFFB9FFAA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanTypeAxis_14C1ECAA5ED6DCBA1580D36AFFB83249" xlink:to="loc_us-gaap_MultiemployerPlansTypeDomain_7606C6DFF62C9DD9A30DD36AFFB9FFAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansPensionMember" xlink:label="loc_us-gaap_MultiemployerPlansPensionMember_1D4B22DC4BCEE3822297D36AFFCF9AD2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlansTypeDomain_7606C6DFF62C9DD9A30DD36AFFB9FFAA" xlink:to="loc_us-gaap_MultiemployerPlansPensionMember_1D4B22DC4BCEE3822297D36AFFCF9AD2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanNameAxis" xlink:label="loc_us-gaap_MultiemployerPlanNameAxis_94DDE63C7D5B037FAACFD36AFFA010C3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_3CA589A4D18AAFB90BD5D369D14A9AF8" xlink:to="loc_us-gaap_MultiemployerPlanNameAxis_94DDE63C7D5B037FAACFD36AFFA010C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlanNameDomain" xlink:label="loc_us-gaap_MultiemployerPlanNameDomain_CC9E7B0561CA1E50002FD36AFFA3CB1D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanNameAxis_94DDE63C7D5B037FAACFD36AFFA010C3" xlink:to="loc_us-gaap_MultiemployerPlanNameDomain_CC9E7B0561CA1E50002FD36AFFA3CB1D" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember" xlink:label="loc_cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember_5C83EE00B0E8777632E2D36AFFDB4295" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlanNameDomain_CC9E7B0561CA1E50002FD36AFFA3CB1D" xlink:to="loc_cwst_NewEnglandTeamstersandTruckingIndustryPensionFundMember_5C83EE00B0E8777632E2D36AFFDB4295" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MultiemployerPlansLineItems" xlink:label="loc_us-gaap_MultiemployerPlansLineItems_650623A7E0E074E44C43D369D14B83BC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfMultiemployerPlansTable_3CA589A4D18AAFB90BD5D369D14A9AF8" xlink:to="loc_us-gaap_MultiemployerPlansLineItems_650623A7E0E074E44C43D369D14B83BC" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MultiemployerPlansNumberofPlans" xlink:label="loc_cwst_MultiemployerPlansNumberofPlans_C93F74190CE7C433F4B7D36ABAA38715" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MultiemployerPlansLineItems_650623A7E0E074E44C43D369D14B83BC" xlink:to="loc_cwst_MultiemployerPlansNumberofPlans_C93F74190CE7C433F4B7D36ABAA38715" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesDerivativesAndHedgingDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_70C2AC8CF7DA2A663DA676D6FB0B8C1C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_C172CC374DC8736245CB76D6FB0B39C3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_70C2AC8CF7DA2A663DA676D6FB0B8C1C" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_C172CC374DC8736245CB76D6FB0B39C3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_577C2165C642C1F185F976D6FB0B1434" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_C172CC374DC8736245CB76D6FB0B39C3" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_577C2165C642C1F185F976D6FB0B1434" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_91F3958DE6184CC1EE3E76D6FB0B7475" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_577C2165C642C1F185F976D6FB0B1434" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_91F3958DE6184CC1EE3E76D6FB0B7475" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateContractMember" xlink:label="loc_us-gaap_InterestRateContractMember_756237F4BCA189932BB076D6FB0BD151" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_91F3958DE6184CC1EE3E76D6FB0B7475" xlink:to="loc_us-gaap_InterestRateContractMember_756237F4BCA189932BB076D6FB0BD151" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_InterestRateContractFebruary2021Member" xlink:label="loc_cwst_InterestRateContractFebruary2021Member_BE0328DEBEC6F79DD2E776D6FB0BAC94" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_91F3958DE6184CC1EE3E76D6FB0B7475" xlink:to="loc_cwst_InterestRateContractFebruary2021Member_BE0328DEBEC6F79DD2E776D6FB0BAC94" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_InterestRateContractFebruary2022Member" xlink:label="loc_cwst_InterestRateContractFebruary2022Member_F7F10FD70C369F66FDB476D6FB0B11B8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_91F3958DE6184CC1EE3E76D6FB0B7475" xlink:to="loc_cwst_InterestRateContractFebruary2022Member_F7F10FD70C369F66FDB476D6FB0B11B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_AD071D5EF82BC31E8B8076D6FB0B4617" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_C172CC374DC8736245CB76D6FB0B39C3" xlink:to="loc_us-gaap_VariableRateAxis_AD071D5EF82BC31E8B8076D6FB0B4617" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_E62AFA5F20B84C51646876D6FB0BA141" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateAxis_AD071D5EF82BC31E8B8076D6FB0B4617" xlink:to="loc_us-gaap_VariableRateDomain_E62AFA5F20B84C51646876D6FB0BA141" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_4F6F444BF48558D0290A76D6FB0B4B78" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_VariableRateDomain_E62AFA5F20B84C51646876D6FB0BA141" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_4F6F444BF48558D0290A76D6FB0B4B78" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable_C172CC374DC8736245CB76D6FB0B39C3" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeNumberOfInstrumentsHeld" xlink:label="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_6351C92BC503D359C7A276D6FB0B715B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_6351C92BC503D359C7A276D6FB0B715B" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_DerivativeSettlementOfForwardStartingInterestRateSwapAgreement" xlink:label="loc_cwst_DerivativeSettlementOfForwardStartingInterestRateSwapAgreement_412223E050078660980076D6FB0B16B0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_cwst_DerivativeSettlementOfForwardStartingInterestRateSwapAgreement_412223E050078660980076D6FB0B16B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNotionalAmount" xlink:label="loc_invest_DerivativeNotionalAmount_CD6766CBDF521773C91376D6FB0B8B63" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_invest_DerivativeNotionalAmount_CD6766CBDF521773C91376D6FB0B8B63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFloorInterestRate" xlink:label="loc_us-gaap_DerivativeFloorInterestRate_8331B70DEEC8C1F66BCE76D6FB0B8296" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_us-gaap_DerivativeFloorInterestRate_8331B70DEEC8C1F66BCE76D6FB0B8296" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAverageFixedInterestRate" xlink:label="loc_us-gaap_DerivativeAverageFixedInterestRate_5CB6721BF70FDAD2493276D6FB0CEF8F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_us-gaap_DerivativeAverageFixedInterestRate_5CB6721BF70FDAD2493276D6FB0CEF8F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetsNoncurrent" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent_3ADAEE518F3E089E50E976D6FB0CB5E7" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_us-gaap_DerivativeAssetsNoncurrent_3ADAEE518F3E089E50E976D6FB0CB5E7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_479AD04D5A2CC0341A1776D6FB0C6E61" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems_CBD23E9EFA0E14CD59D476D6FB0BD6AB" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_479AD04D5A2CC0341A1776D6FB0C6E61" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesOfAssetsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_398872A5D5FC32ACB03076D6F9B976A2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A2553A972668D17CA13676D6F9B9B9DA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_398872A5D5FC32ACB03076D6F9B976A2" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A2553A972668D17CA13676D6F9B9B9DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_B2247498DE1C6B8635D076D6F9B91614" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A2553A972668D17CA13676D6F9B9B9DA" xlink:to="loc_us-gaap_RangeAxis_B2247498DE1C6B8635D076D6F9B91614" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_8128D0100A4929038DF276D6F9B9A8A6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_B2247498DE1C6B8635D076D6F9B91614" xlink:to="loc_us-gaap_RangeMember_8128D0100A4929038DF276D6F9B9A8A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_977C0BBDFA8ACAFD41D076D6F9B95D24" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_8128D0100A4929038DF276D6F9B9A8A6" xlink:to="loc_us-gaap_MinimumMember_977C0BBDFA8ACAFD41D076D6F9B95D24" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_7CB87E6D04121D586C1076D6F9B9BAD6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_8128D0100A4929038DF276D6F9B9A8A6" xlink:to="loc_us-gaap_MaximumMember_7CB87E6D04121D586C1076D6F9B9BAD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_1A487BF45B59FA92793976D6F9B9D5BC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A2553A972668D17CA13676D6F9B9B9DA" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_1A487BF45B59FA92793976D6F9B9D5BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_1A487BF45B59FA92793976D6F9B9D5BC" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingAndBuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_0F543ECE523A5DD306BF76D6F9BA0E69" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_0F543ECE523A5DD306BF76D6F9BA0E69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_71BFD5C727E46F64DA1976D6F9BAC4DA" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_71BFD5C727E46F64DA1976D6F9BAC4DA" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_RollingStockMember" xlink:label="loc_cwst_RollingStockMember_611FD197E3F441AD215476D6F9BAC024" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:to="loc_cwst_RollingStockMember_611FD197E3F441AD215476D6F9BAC024" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ContainersMember" xlink:label="loc_us-gaap_ContainersMember_94F9C92912D59FCA5C6D76D6F9BA8ABF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:to="loc_us-gaap_ContainersMember_94F9C92912D59FCA5C6D76D6F9BA8ABF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_54D85A52E5122716499976D6F9BADFAE" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_499E0D49FB3342E876BF76D6F9BA9068" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_54D85A52E5122716499976D6F9BADFAE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B4FF1865C11A98BB943576D6F9BA1E05" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_A2553A972668D17CA13676D6F9B9B9DA" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B4FF1865C11A98BB943576D6F9BA1E05" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_FF3F777B879FBA4A1E0876D6F9BA44B2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_B4FF1865C11A98BB943576D6F9BA1E05" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_FF3F777B879FBA4A1E0876D6F9BA44B2" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesGoodwillAndIntangibleAssetsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_966E924096AB8C022E0876D6FB60AB09" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_D018BB07E032AB63CBAF76D6FB609FBF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_966E924096AB8C022E0876D6FB60AB09" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_D018BB07E032AB63CBAF76D6FB609FBF" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesInvestmentsInUnconsolidatedEntitiesDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_48EC9B4F63CAF5FA282C76D6F99C83DC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaap_EquityMethodInvestments_2C746CE2EF010974724076D6F99CEC27" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_48EC9B4F63CAF5FA282C76D6F99C83DC" xlink:to="loc_us-gaap_EquityMethodInvestments_2C746CE2EF010974724076D6F99CEC27" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesLandfillAccountingDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_16288DBF1ABE67CEA50476D6FB44AABF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AC80F6B83A0442B38A1F76D6FB444DBC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_16288DBF1ABE67CEA50476D6FB44AABF" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AC80F6B83A0442B38A1F76D6FB444DBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_3F6348524D0F8BCBED9176D6FB4475EF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AC80F6B83A0442B38A1F76D6FB444DBC" xlink:to="loc_us-gaap_RangeAxis_3F6348524D0F8BCBED9176D6FB4475EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_11FDB19DFC81DC067E6D76D6FB4459F1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeAxis_3F6348524D0F8BCBED9176D6FB4475EF" xlink:to="loc_us-gaap_RangeMember_11FDB19DFC81DC067E6D76D6FB4459F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_A09C3D0E2AAC8F6F98E076D6FB44DE7B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_11FDB19DFC81DC067E6D76D6FB4459F1" xlink:to="loc_us-gaap_MinimumMember_A09C3D0E2AAC8F6F98E076D6FB44DE7B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_8F3F90C7A2F6DEE2245A76D6FB44EBE0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RangeMember_11FDB19DFC81DC067E6D76D6FB4459F1" xlink:to="loc_us-gaap_MaximumMember_8F3F90C7A2F6DEE2245A76D6FB44EBE0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0A9A3F93B14336E4FE2176D6FB44C3B6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AC80F6B83A0442B38A1F76D6FB444DBC" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0A9A3F93B14336E4FE2176D6FB44C3B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_7014F0EA1A9F9C74041076D6FB44134F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_0A9A3F93B14336E4FE2176D6FB44C3B6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_7014F0EA1A9F9C74041076D6FB44134F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ClosureAndPostClosureCostsMember" xlink:label="loc_cwst_ClosureAndPostClosureCostsMember_0F5065649222CACA211376D6FB443756" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_7014F0EA1A9F9C74041076D6FB44134F" xlink:to="loc_cwst_ClosureAndPostClosureCostsMember_0F5065649222CACA211376D6FB443756" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_AC80F6B83A0442B38A1F76D6FB444DBC" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestCostsCapitalized" xlink:label="loc_us-gaap_InterestCostsCapitalized_773A11362E8A9199B6AD76D6FB440C3F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_us-gaap_InterestCostsCapitalized_773A11362E8A9199B6AD76D6FB440C3F" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_ClosureandPostClosureCostsIncurrencePeriod" xlink:label="loc_cwst_ClosureandPostClosureCostsIncurrencePeriod_B08A4FC7A44A58C3B95D76D6FB45A717" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_cwst_ClosureandPostClosureCostsIncurrencePeriod_B08A4FC7A44A58C3B95D76D6FB45A717" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_InflationRate" xlink:label="loc_cwst_InflationRate_3E8A689C0635E7CCA89976D6FB454DC3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_cwst_InflationRate_3E8A689C0635E7CCA89976D6FB454DC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsDiscountRate" xlink:label="loc_us-gaap_FairValueInputsDiscountRate_B08276131FC0B318BC6476D6FB45E07F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_us-gaap_FairValueInputsDiscountRate_B08276131FC0B318BC6476D6FB45E07F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetRetirementObligationAccretionExpense" xlink:label="loc_us-gaap_AssetRetirementObligationAccretionExpense_35F682D5B2EF5020572876D6FB455AB2" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_us-gaap_AssetRetirementObligationAccretionExpense_35F682D5B2EF5020572876D6FB455AB2" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_SuretyBonds" xlink:label="loc_cwst_SuretyBonds_BDA0FB9D0659166CC66976D6FB45F118" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_cwst_SuretyBonds_BDA0FB9D0659166CC66976D6FB45F118" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_CA4EDC2A804FEB0ED83A76D6FB45C91C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_CA4EDC2A804FEB0ED83A76D6FB45C91C" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_NumberofLandfillOperationandManagementAgreementsEnteredInto" xlink:label="loc_cwst_NumberofLandfillOperationandManagementAgreementsEnteredInto_52F8D0A8C0ECE109192876D6FB4516C8" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_0A237D8F75A3C3BAE8E776D6FB44B0DA" xlink:to="loc_cwst_NumberofLandfillOperationandManagementAgreementsEnteredInto_52F8D0A8C0ECE109192876D6FB4516C8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesSelfInsuranceLiabilitiesAndRelatedCostsDetail" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_8E2E4C5606AF5D556B2876D6FB1DB5B0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCapitalLeasedAsssetsTable" xlink:label="loc_us-gaap_ScheduleOfCapitalLeasedAsssetsTable_F27BB751D79331B87B5876D6FB1D76B0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_8E2E4C5606AF5D556B2876D6FB1DB5B0" xlink:to="loc_us-gaap_ScheduleOfCapitalLeasedAsssetsTable_F27BB751D79331B87B5876D6FB1D76B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorPropertyClassAxis" xlink:label="loc_us-gaap_MajorPropertyClassAxis_7F5144D89D7A409D10D676D6FB1DF5C6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCapitalLeasedAsssetsTable_F27BB751D79331B87B5876D6FB1D76B0" xlink:to="loc_us-gaap_MajorPropertyClassAxis_7F5144D89D7A409D10D676D6FB1DF5C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorPropertyClassDomain" xlink:label="loc_us-gaap_MajorPropertyClassDomain_8AA3D0F5F5E3695BDBD376D6FB1DE7FF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MajorPropertyClassAxis_7F5144D89D7A409D10D676D6FB1DF5C6" xlink:to="loc_us-gaap_MajorPropertyClassDomain_8AA3D0F5F5E3695BDBD376D6FB1DE7FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AutomobilesMember" xlink:label="loc_us-gaap_AutomobilesMember_C4E3428D935B201FD0FA76D6FB1D9AD7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MajorPropertyClassDomain_8AA3D0F5F5E3695BDBD376D6FB1DE7FF" xlink:to="loc_us-gaap_AutomobilesMember_C4E3428D935B201FD0FA76D6FB1D9AD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasedAssetsLineItems" xlink:label="loc_us-gaap_CapitalLeasedAssetsLineItems_E50BD3494CF1E2136E0E76D6FB1E964A" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfCapitalLeasedAsssetsTable_F27BB751D79331B87B5876D6FB1D76B0" xlink:to="loc_us-gaap_CapitalLeasedAssetsLineItems_E50BD3494CF1E2136E0E76D6FB1E964A" xlink:type="arc" />
    <link:loc xlink:href="cwst-20171231.xsd#cwst_MaximumExposureSelfInsured" xlink:label="loc_cwst_MaximumExposureSelfInsured_BB4381B388084A0F484576D6FB1E2253" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasedAssetsLineItems_E50BD3494CF1E2136E0E76D6FB1E964A" xlink:to="loc_cwst_MaximumExposureSelfInsured_BB4381B388084A0F484576D6FB1E2253" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SelfInsuranceReserve" xlink:label="loc_us-gaap_SelfInsuranceReserve_CA95BE531CBDA436A11976D6FB1E614F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalLeasedAssetsLineItems_E50BD3494CF1E2136E0E76D6FB1E964A" xlink:to="loc_us-gaap_SelfInsuranceReserve_CA95BE531CBDA436A11976D6FB1E614F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://casella.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_C54A89A59A1BA102DD0376D6F9B52831" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_62B3B6C6899BA1148A4376D6F9B56574" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_C54A89A59A1BA102DD0376D6F9B52831" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_62B3B6C6899BA1148A4376D6F9B56574" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
