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| <link:definition> 0010 - Statement - CONSOLIDATED BALANCE SHEETS </link:definition> |
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| <link:definition> 0020 - Statement - CONSOLIDATED STATEMENTS OF INCOME </link:definition> |
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| <link:definition> 0030 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS </link:definition> |
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| <link:definition> 1010 - Disclosure - OPERATIONS </link:definition> |
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| <link:definition> 0025 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) </link:definition> |
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| <link:definition> 0015 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) </link:definition> |
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| | | <link:roleType id="DisclosureBusinessCombinations" roleURI="http://www.cleanharbors.com/role/DisclosureBusinessCombinations"> |
| <link:definition> 1030 - Disclosure - BUSINESS COMBINATIONS </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="DisclosureFairValueMeasurements" roleURI="http://www.cleanharbors.com/role/DisclosureFairValueMeasurements"> |
| <link:definition> 1040 - Disclosure - FAIR VALUE MEASUREMENTS </link:definition> |
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| | | <link:roleType id="DisclosureGoodwillAndOtherIntangibleAssets" roleURI="http://www.cleanharbors.com/role/DisclosureGoodwillAndOtherIntangibleAssets"> |
| <link:definition> 1050 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="DisclosureAccruedExpenses" roleURI="http://www.cleanharbors.com/role/DisclosureAccruedExpenses"> |
| <link:definition> 1060 - Disclosure - ACCRUED EXPENSES </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType id="DisclosureClosureAndPostClosureLiabilities" roleURI="http://www.cleanharbors.com/role/DisclosureClosureAndPostClosureLiabilities"> |
| <link:definition> 1070 - Disclosure - CLOSURE AND POST-CLOSURE LIABILITIES </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| <link:definition> 1080 - Disclosure - REMEDIAL LIABILITIES </link:definition> |
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| | | <link:roleType id="DisclosureFinancingArrangements" roleURI="http://www.cleanharbors.com/role/DisclosureFinancingArrangements"> |
| <link:definition> 1090 - Disclosure - FINANCING ARRANGEMENTS </link:definition> |
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| <link:definition> 1150 - Disclosure - COMMITMENTS AND CONTINGENCIES </link:definition> |
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| | | <link:roleType id="DisclosureIncomeTaxes" roleURI="http://www.cleanharbors.com/role/DisclosureIncomeTaxes"> |
| <link:definition> 1110 - Disclosure - INCOME TAXES </link:definition> |
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| | | <link:roleType id="DisclosureEarningsPerShare" roleURI="http://www.cleanharbors.com/role/DisclosureEarningsPerShare"> |
| <link:definition> 1120 - Disclosure - EARNINGS PER SHARE </link:definition> |
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| <link:definition> 1160 - Disclosure - SEGMENT REPORTING </link:definition> |
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| <link:definition> 1180 - Disclosure - GUARANTOR AND NON-GUARANTOR SUBSIDIARIES </link:definition> |
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| <link:definition> 8000 - Disclosure - SUBSEQUENT EVENT </link:definition> |
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| <link:definition> 8020 - Disclosure - SUPPLIES INVENTORY </link:definition> |
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| <link:definition> 8040 - Disclosure - RELATED PARTY TRANSACTIONS </link:definition> |
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| | | <link:roleType id="DisclosureNoncontrollingInterest" roleURI="http://www.cleanharbors.com/role/DisclosureNoncontrollingInterest"> |
| <link:definition> 8010 - Disclosure - NONCONTROLLING INTEREST </link:definition> |
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| | | <link:roleType id="DisclosureStockholdersEquity" roleURI="http://www.cleanharbors.com/role/DisclosureStockholdersEquity"> |
| <link:definition> 8050 - Disclosure - STOCKHOLDERS' EQUITY </link:definition> |
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| | | <link:roleType id="DisclosureHeldForSale" roleURI="http://www.cleanharbors.com/role/DisclosureHeldForSale"> |
| <link:definition> 1100 - Disclosure - HELD FOR SALE </link:definition> |
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| | | <link:roleType id="StatementOfStockholdersEquityCalc2" roleURI="http://www.cleanharbors.com/role/StatementOfStockholdersEquityCalc2"> |
| <link:definition> 0041 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY CALC2 </link:definition> |
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| | | <link:roleType id="DisclosureSignificantAccountingPolicies" roleURI="http://www.cleanharbors.com/role/DisclosureSignificantAccountingPolicies"> |
| <link:definition> 1020 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES </link:definition> |
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| | | <link:roleType id="DisclosureStockBasedCompensationAndEmployeeParticipationPlan" roleURI="http://www.cleanharbors.com/role/DisclosureStockBasedCompensationAndEmployeeParticipationPlan"> |
| <link:definition> 1130 - Disclosure - STOCK-BASED COMPENSATION AND EMPLOYEE PARTICIPATION PLAN </link:definition> |
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| | | <link:roleType id="DisclosureEmployeeBenefitPlans" roleURI="http://www.cleanharbors.com/role/DisclosureEmployeeBenefitPlans"> |
| <link:definition> 1140 - Disclosure - EMPLOYEE BENEFIT PLANS </link:definition> |
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| <link:definition> 1170 - Disclosure - QUARTERLY DATA (UNAUDITED) </link:definition> |
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| | | <link:roleType id="StatementOfStockholdersEquityParenthetical" roleURI="http://www.cleanharbors.com/role/StatementOfStockholdersEquityParenthetical"> |
| <link:definition> 0045 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) </link:definition> |
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| <link:definition> 1200 - Disclosure - SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS </link:definition> |
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| <link:definition> 1190 - Disclosure - PENDING ACQUISITION </link:definition> |
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| <element abstract="true" id="clh_RemedialLiabilitiesDisclosureAbstract" name="RemedialLiabilitiesDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_FinancingArrangementsDisclosureAbstract" name="FinancingArrangementsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_HeldForSaleDisclosureAbstract" name="HeldForSaleDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_RelatedPartyTransactionsDisclosureAbstract" name="RelatedPartyTransactionsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_IncomeTaxesDisclosureAbstract" name="IncomeTaxesDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_EarningsPerShareDisclosureAbstract" name="EarningsPerShareDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_StockBasedCompensationAndEmployeeParticipationPlanDisclosureAbstract" name="StockBasedCompensationAndEmployeeParticipationPlanDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_EmployeeBenefitPlansDisclosureAbstract" name="EmployeeBenefitPlansDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_SignificantAccountingPoliciesAndRecentAccountingPronouncementsDisclosureAbstract" name="SignificantAccountingPoliciesAndRecentAccountingPronouncementsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element id="clh_SignificantAccountingPoliciesAndRecentAccountingPronouncementsTextBlock" name="SignificantAccountingPoliciesAndRecentAccountingPronouncementsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="us-types:textBlockItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_CommitmentsAndContingenciesDisclosureAbstract" name="CommitmentsAndContingenciesDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_SegmentReportingDisclosureAbstract" name="SegmentReportingDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_GuarantorAndNonGuarantorSubsidiariesDisclosureAbstract" name="GuarantorAndNonGuarantorSubsidiariesDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_SubsequentEventDisclosureAbstract" name="SubsequentEventDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_NoncontrollingInterestDisclosureAbstract" name="NoncontrollingInterestDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_StockholdersEquityDisclosureAbstract" name="StockholdersEquityDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_SuppliesInventoryDisclosureAbstract" name="SuppliesInventoryDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element id="clh_RepaymentOfCapitalLeaseObligation" name="RepaymentOfCapitalLeaseObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <element id="clh_UnbilledAccountsReceivableCurrent" name="UnbilledAccountsReceivableCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <element id="clh_CampEquipmentGross" name="CampEquipmentGross" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/> |
| <element id="clh_DistributionsEarnedOnEmployeeParticipationPlan" name="DistributionsEarnedOnEmployeeParticipationPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <element id="clh_ProceedsFromWarrantExercise" name="ProceedsFromWarrantExercise" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <element id="clh_SharesHeldUnderEmployeeParticipationPlanMember" name="SharesHeldUnderEmployeeParticipationPlanMember" nillable="true" substitutionGroup="xbrli:item" type="us-types:domainItemType" xbrli:periodType="duration"/> |
| <element id="clh_SharesHeldUnderEmployeeParticipationPlan" name="SharesHeldUnderEmployeeParticipationPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <element id="clh_GainOnSalesOfBusinesses" name="GainOnSalesOfBusinesses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <element id="clh_ProceedsFromSaleOfLongTermInvestments" name="ProceedsFromSaleOfLongTermInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <element id="clh_ProceedsFromInsuranceSettlement" name="ProceedsFromInsuranceSettlement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_QuarterlyDataDisclosureAbstract" name="QuarterlyDataDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| <element id="clh_StockIssuedDuringPeriodValueStockWarrantsExercised" name="StockIssuedDuringPeriodValueStockWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/> |
| <element id="clh_StockIssuedDuringPeriodSharesStockWarrantsExercised" name="StockIssuedDuringPeriodSharesStockWarrantsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration"/> |
| <element abstract="true" id="clh_ValuationAndQualifyingAccountsDisclosureAbstract" name="ValuationAndQualifyingAccountsDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/> |
| </schema> |