<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Toppan Merrill Bridge  9.4.7193.41938 -->
<!--Based on XBRL 2.1-->
<!--Created on: 10/23/2019 4:36:39 PM-->
<!--Modified on: 10/23/2019 4:36:39 PM-->
<schema targetNamespace="http://www.wm.com/20190930" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:currency="http://xbrl.sec.gov/currency/2019-01-31" xmlns:country="http://xbrl.sec.gov/country/2017-01-31" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:wm="http://www.wm.com/20190930" xmlns:us-gaap="http://fasb.org/us-gaap/2019-01-31" xmlns:us-types="http://fasb.org/us-types/2019-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2019-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2018-01-31" xmlns:naics="http://xbrl.sec.gov/naics/2017-01-31">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedBalanceSheets" id="StatementCondensedConsolidatedBalanceSheets">
        <link:definition>00100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfOperations" id="StatementCondensedConsolidatedStatementsOfOperations">
        <link:definition>00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncome" id="StatementCondensedConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfCashFlows" id="StatementCondensedConsolidatedStatementsOfCashFlows">
        <link:definition>00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical" id="StatementCondensedConsolidatedStatementsOfCashFlowsParenthetical">
        <link:definition>00405 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesSummaryDetail" id="DisclosureLandfillAndEnvironmentalRemediationLiabilitiesSummaryDetail">
        <link:definition>40201 - Disclosure - Landfill and Environmental Remediation Liabilities - Summary (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureDebtComponentsOfDebtDetail" id="DisclosureDebtComponentsOfDebtDetail">
        <link:definition>40301 - Disclosure - Debt - Components of Debt (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesBalanceSheetDetail" id="DisclosureLeasesBalanceSheetDetail">
        <link:definition>40402 - Disclosure - Leases - Balance sheet (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesExpenseDetail" id="DisclosureLeasesExpenseDetail">
        <link:definition>40403 - Disclosure - Leases - Expense (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesMaturitiesDetail" id="DisclosureLeasesMaturitiesDetail">
        <link:definition>40404 - Disclosure - Leases - Maturities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesMaturitiesDetailCalc2" id="DisclosureLeasesMaturitiesDetailCalc2">
        <link:definition>40404 - Disclosure - Leases - Maturities (Detail) (Calc 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureEarningsPerShareDetail" id="DisclosureEarningsPerShareDetail">
        <link:definition>40601 - Disclosure - Earnings Per Share (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCommitmentsAndContingenciesQuarterDetails" id="DisclosureCommitmentsAndContingenciesQuarterDetails">
        <link:definition>40701 - Disclosure - Commitments and Contingencies - Quarter (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveLossChangesDetail" id="DisclosureAccumulatedOtherComprehensiveLossChangesDetail">
        <link:definition>41101 - Disclosure - Accumulated Other Comprehensive Loss - Changes (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureFairValueMeasurementsRecurringDetail" id="DisclosureFairValueMeasurementsRecurringDetail">
        <link:definition>41301 - Disclosure - Fair Value Measurements - Recurring (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatementsBalanceSheetsDetail" id="DisclosureCondensedConsolidatingFinancialStatementsBalanceSheetsDetail">
        <link:definition>41501 - Disclosure - Condensed Consolidating Financial Statements - Balance Sheets (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatementsStatementsOfOperationsDetail" id="DisclosureCondensedConsolidatingFinancialStatementsStatementsOfOperationsDetail">
        <link:definition>41502 - Disclosure - Condensed Consolidating Financial Statements - Statements of Operations (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementOfChangesInEquity" id="StatementCondensedConsolidatedStatementOfChangesInEquity">
        <link:definition>00500 - Statement - CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureBasisOfPresentationDetail" id="DisclosureBasisOfPresentationDetail">
        <link:definition>40101 - Disclosure - Basis of Presentation (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureBasisOfPresentationRevenueRecognitionDetails" id="DisclosureBasisOfPresentationRevenueRecognitionDetails">
        <link:definition>40102 - Disclosure - Basis of Presentation - Revenue Recognition (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureBasisOfPresentationAdoptionOfNewAccountingStandardsDetail" id="DisclosureBasisOfPresentationAdoptionOfNewAccountingStandardsDetail">
        <link:definition>40103 - Disclosure - Basis of Presentation - Adoption of New Accounting Standards (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesChangesDetail" id="DisclosureLandfillAndEnvironmentalRemediationLiabilitiesChangesDetail">
        <link:definition>40202 - Disclosure - Landfill and Environmental Remediation Liabilities - Changes (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureDebtClassificationAndUtilizationDetail" id="DisclosureDebtClassificationAndUtilizationDetail">
        <link:definition>40302 - Disclosure - Debt - Classification and Utilization (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureDebtBorrowingsAndRepaymentsDetail" id="DisclosureDebtBorrowingsAndRepaymentsDetail">
        <link:definition>40303 - Disclosure - Debt - Borrowings and Repayments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesDetail" id="DisclosureLeasesDetail">
        <link:definition>40401 - Disclosure - Leases (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesOtherDetail" id="DisclosureLeasesOtherDetail">
        <link:definition>40406 - Disclosure - Leases - Other (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureIncomeTaxesQuarterInformationDetail" id="DisclosureIncomeTaxesQuarterInformationDetail">
        <link:definition>40501 - Disclosure - Income Taxes - Quarter information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureSegmentAndRelatedInformationInformationDetail" id="DisclosureSegmentAndRelatedInformationInformationDetail">
        <link:definition>40801 - Disclosure - Segment and Related Information - Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureSegmentAndRelatedInformationSummaryDetail" id="DisclosureSegmentAndRelatedInformationSummaryDetail">
        <link:definition>40802 - Disclosure - Segment and Related Information - Summary (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureSegmentAndRelatedInformationRevenuesMixDetail" id="DisclosureSegmentAndRelatedInformationRevenuesMixDetail">
        <link:definition>40803 - Disclosure - Segment and Related Information - Revenues mix (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAcquisitionsDetail" id="DisclosureAcquisitionsDetail">
        <link:definition>40901 - Disclosure - Acquisitions (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAssetImpairmentsAndUnusualItemsDetail" id="DisclosureAssetImpairmentsAndUnusualItemsDetail">
        <link:definition>41001 - Disclosure - Asset Impairments and Unusual Items (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveLossTaxImpactDetail" id="DisclosureAccumulatedOtherComprehensiveLossTaxImpactDetail">
        <link:definition>41102 - Disclosure - Accumulated Other Comprehensive Loss - Tax Impact (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCommonStockRepurchaseProgramDetail" id="DisclosureCommonStockRepurchaseProgramDetail">
        <link:definition>41201 - Disclosure - Common Stock Repurchase Program (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureFairValueMeasurementsDebtDetail" id="DisclosureFairValueMeasurementsDebtDetail">
        <link:definition>41302 - Disclosure - Fair Value Measurements - Debt (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureVariableInterestEntitiesDetail" id="DisclosureVariableInterestEntitiesDetail">
        <link:definition>41401 - Disclosure - Variable Interest Entities (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatementsStatementsOfComprehensiveIncomeDetail" id="DisclosureCondensedConsolidatingFinancialStatementsStatementsOfComprehensiveIncomeDetail">
        <link:definition>41503 - Disclosure - Condensed Consolidating Financial Statements - Statements of Comprehensive Income (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatementsCashFlowsDetail" id="DisclosureCondensedConsolidatingFinancialStatementsCashFlowsDetail">
        <link:definition>41504 - Disclosure - Condensed Consolidating Financial Statements - Cash Flows (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DocumentDocumentAndEntityInformation" id="DocumentDocumentAndEntityInformation">
        <link:definition>00090 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical" id="StatementCondensedConsolidatedBalanceSheetsParenthetical">
        <link:definition>00105 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/StatementCondensedConsolidatedStatementOfChangesInEquityParenthetical" id="StatementCondensedConsolidatedStatementOfChangesInEquityParenthetical">
        <link:definition>00505 - Statement - CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureBasisOfPresentation" id="DisclosureBasisOfPresentation">
        <link:definition>10101 - Disclosure - Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilities" id="DisclosureLandfillAndEnvironmentalRemediationLiabilities">
        <link:definition>10201 - Disclosure - Landfill and Environmental Remediation Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureDebt" id="DisclosureDebt">
        <link:definition>10301 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeases" id="DisclosureLeases">
        <link:definition>10401 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureIncomeTaxes" id="DisclosureIncomeTaxes">
        <link:definition>10501 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureEarningsPerShare" id="DisclosureEarningsPerShare">
        <link:definition>10601 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCommitmentsAndContingencies" id="DisclosureCommitmentsAndContingencies">
        <link:definition>10701 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureSegmentAndRelatedInformation" id="DisclosureSegmentAndRelatedInformation">
        <link:definition>10801 - Disclosure - Segment and Related Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAcquisitions" id="DisclosureAcquisitions">
        <link:definition>10901 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAssetImpairmentsAndUnusualItems" id="DisclosureAssetImpairmentsAndUnusualItems">
        <link:definition>11001 - Disclosure - Asset Impairments and Unusual Items</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLoss" id="DisclosureAccumulatedOtherComprehensiveIncomeLoss">
        <link:definition>11101 - Disclosure - Accumulated Other Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCommonStockRepurchaseProgram" id="DisclosureCommonStockRepurchaseProgram">
        <link:definition>11201 - Disclosure - Common Stock Repurchase Program</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureFairValueMeasurements" id="DisclosureFairValueMeasurements">
        <link:definition>11301 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureVariableInterestEntities" id="DisclosureVariableInterestEntities">
        <link:definition>11401 - Disclosure - Variable Interest Entities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatements" id="DisclosureCondensedConsolidatingFinancialStatements">
        <link:definition>11501 - Disclosure - Condensed Consolidating Financial Statements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureBasisOfPresentationPolicies" id="DisclosureBasisOfPresentationPolicies">
        <link:definition>20102 - Disclosure - Basis of Presentation (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLandfillAndEnvironmentalRemediationLiabilitiesTables" id="DisclosureLandfillAndEnvironmentalRemediationLiabilitiesTables">
        <link:definition>30203 - Disclosure - Landfill and Environmental Remediation Liabilities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureDebtTables" id="DisclosureDebtTables">
        <link:definition>30303 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesTables" id="DisclosureLeasesTables">
        <link:definition>30403 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureEarningsPerShareTables" id="DisclosureEarningsPerShareTables">
        <link:definition>30603 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureSegmentAndRelatedInformationTables" id="DisclosureSegmentAndRelatedInformationTables">
        <link:definition>30803 - Disclosure - Segment and Related Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureAccumulatedOtherComprehensiveIncomeLossTables" id="DisclosureAccumulatedOtherComprehensiveIncomeLossTables">
        <link:definition>31103 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureFairValueMeasurementsTables" id="DisclosureFairValueMeasurementsTables">
        <link:definition>31303 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureCondensedConsolidatingFinancialStatementsTables" id="DisclosureCondensedConsolidatingFinancialStatementsTables">
        <link:definition>31503 - Disclosure - Condensed Consolidating Financial Statements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.wm.com/role/DisclosureLeasesCashFlowDetail" id="DisclosureLeasesCashFlowDetail">
        <link:definition>40405 - Disclosure - Leases - Cash flow (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="wm-20190930_pre.xml" xlink:title="Presentation Links, all" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wm-20190930_cal.xml" xlink:title="Calculation Links, all" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wm-20190930_def.xml" xlink:title="Definition Links, all" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="wm-20190930_lab.xml" xlink:title="Label Links, all" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
  <import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
  <element name="AcceleratedShareRepurchaseAgreementMember" id="wm_AcceleratedShareRepurchaseAgreementMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="AssetRetirementObligationAndEnvironmentalRemediationDisclosureTextBlock" id="wm_AssetRetirementObligationAndEnvironmentalRemediationDisclosureTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="AssetRetirementObligationAndEnvironmentalRemediationRollforwardAnalysisTableTextBlock" id="wm_AssetRetirementObligationAndEnvironmentalRemediationRollforwardAnalysisTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="AssetRetirementObligationIncreaseDecreaseForAcquisitionsDivestituresAndOtherAdjustments" id="wm_AssetRetirementObligationIncreaseDecreaseForAcquisitionsDivestituresAndOtherAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <element name="CommercialPaperProgramMember" id="wm_CommercialPaperProgramMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="CommitmentsAndContingenciesLineItems" id="wm_CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="CommitmentsAndContingenciesTable" id="wm_CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element id="wm_CurrentAssetsExcludingCashAndCashEquivalents" name="CurrentAssetsExcludingCashAndCashEquivalents" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wm_CurrentLiabilitiesExcludingCurrentPortionOfLongTermDebt" name="CurrentLiabilitiesExcludingCurrentPortionOfLongTermDebt" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element name="DisclosureRequiredUnderItemOneZeroThreeOfSecsRegulationSk" id="wm_DisclosureRequiredUnderItemOneZeroThreeOfSecsRegulationSk" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <element name="DocumentAndEntityInformationAbstract" id="wm_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="EnvironmentalCostsMember" id="wm_EnvironmentalCostsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="EnvironmentalRemediationReasonablyPossibleAdditionalLossesHighEstimate" id="wm_EnvironmentalRemediationReasonablyPossibleAdditionalLossesHighEstimate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <element name="IncomeLossFromEquityMethodInvestmentsAndOtherNonoperatingIncomeExpense" id="wm_IncomeLossFromEquityMethodInvestmentsAndOtherNonoperatingIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <element name="IncomeTaxExpenseBenefitIncludingFederalTaxCreditsFromEquityMethodInvestment" id="wm_IncomeTaxExpenseBenefitIncludingFederalTaxCreditsFromEquityMethodInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <element name="IncreaseDecreaseInDeferredRevenueAndOtherOperatingLiabilities" id="wm_IncreaseDecreaseInDeferredRevenueAndOtherOperatingLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <element id="wm_IntercompanyActivity" name="IntercompanyActivity" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element name="InterestAndOtherIncomeExpense" id="wm_InterestAndOtherIncomeExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="credit" xbrli:periodType="duration" />
  <element id="wm_InvestmentsInAffiliates" name="InvestmentsInAffiliates" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element name="InvestmentsQualifyingForFederalTaxCreditsMember" id="wm_InvestmentsQualifyingForFederalTaxCreditsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element id="wm_LongTermAssetsExcludingPropertyPlantAndEquipmentAndInvestmentsInAndAdvancesToAffiliates" name="LongTermAssetsExcludingPropertyPlantAndEquipmentAndInvestmentsInAndAdvancesToAffiliates" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wm_LongTermLiabilitiesExcludingLongTermDebtAndDueToAffiliateNoncurrent" name="LongTermLiabilitiesExcludingLongTermDebtAndDueToAffiliateNoncurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element name="MaximumNumberOfLifeExpectedForIrsAuditsToBeCompleted" id="wm_MaximumNumberOfLifeExpectedForIrsAuditsToBeCompleted" type="xbrli:durationItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="NumberOfHomeownersPropertiesAdjacentToOrNearCertainOfOurLandfillsWithAgreementsGuaranteeingMarketValue" id="wm_NumberOfHomeownersPropertiesAdjacentToOrNearCertainOfOurLandfillsWithAgreementsGuaranteeingMarketValue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <element name="NumberOfLandfillsAdjacentToOrNearHomeownersPropertiesWithAgreementsGuaranteeingMarketValue" id="wm_NumberOfLandfillsAdjacentToOrNearHomeownersPropertiesWithAgreementsGuaranteeingMarketValue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <element name="NumberOfNonOwnedSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" id="wm_NumberOfNonOwnedSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <element name="NumberOfOwnedSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" id="wm_NumberOfOwnedSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" type="xbrli:integerItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="instant" />
  <element id="wm_NumberOfSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" name="NumberOfSitesListedOnEnvironmentalProtectionAgencyNationalPrioritiesListForWhichWeHaveBeenNotifiedWeArePrp" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element name="OperatingGroupMember" id="wm_OperatingGroupMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="OtherReceivablesInvestmentsInUnconsolidatedEntitiesAndOtherAssetsMember" id="wm_OtherReceivablesInvestmentsInUnconsolidatedEntitiesAndOtherAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="PotentiallyIssuableShares" id="wm_PotentiallyIssuableShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:periodType="duration" />
  <element name="ProceedsFromDivestitureOfBusinessesNetOfCashDivestedAndProceedsFromSalesOfAssetsInvestingActivities" id="wm_ProceedsFromDivestitureOfBusinessesNetOfCashDivestedAndProceedsFromSalesOfAssetsInvestingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" abstract="false" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <element id="wm_ReclassificationFromEquityToAdvanceAffiliates" name="ReclassificationFromEquityToAdvanceAffiliates" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element name="SanJacintoWastePitsMember" id="wm_SanJacintoWastePitsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="SolidWasteMember" id="wm_SolidWasteMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TierOneMember" id="wm_TierOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TierThreeMember" id="wm_TierThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TierTwoMember" id="wm_TierTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="WheelabratorMember" id="wm_WheelabratorMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="CreditFacilityRevolvingMember" id="wm_CreditFacilityRevolvingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="OtherLetterOfCreditFacilitiesMember" id="wm_OtherLetterOfCreditFacilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="SeniorNotesAggregateMember" id="wm_SeniorNotesAggregateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TaxExemptBondsMember" id="wm_TaxExemptBondsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element id="wm_IncreaseDecreaseToOperatingExpensesDueToChangeInDiscountRateUsedToEstimatePresentValueOfEnvironmentalRemediationObligations" name="IncreaseDecreaseToOperatingExpensesDueToChangeInDiscountRateUsedToEstimatePresentValueOfEnvironmentalRemediationObligations" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element name="IncomeTaxesTable" id="wm_IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element id="wm_IncomeTaxesLineItems" name="IncomeTaxesLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element name="CommercialMember" id="wm_CommercialMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="ResidentialMember" id="wm_ResidentialMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="IndustrialMember" id="wm_IndustrialMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="OtherCollectionMember" id="wm_OtherCollectionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="CollectionMember" id="wm_CollectionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="LandfillLineOfBusinessMember" id="wm_LandfillLineOfBusinessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TransferMember" id="wm_TransferMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="RecyclingMember" id="wm_RecyclingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="OtherLinesOfBusinessMember" id="wm_OtherLinesOfBusinessMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="CondensedFinancialInformationDisclosureAbstract" id="wm_CondensedFinancialInformationDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="InvestmentInLowIncomeHousingPropertiesMember" id="wm_InvestmentInLowIncomeHousingPropertiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element name="TrustForFinalCappingClosurePostClosureOrEnvironmentalRemediationObligationsMember" id="wm_TrustForFinalCappingClosurePostClosureOrEnvironmentalRemediationObligationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <element id="wm_DebtInstrumentInterestRatePeriodExpiringCurrent" name="DebtInstrumentInterestRatePeriodExpiringCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_AccruedCappingAndEnvironmentalCosts" name="AccruedCappingAndEnvironmentalCosts" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_DebtInstrumentRefundAndReissue" name="DebtInstrumentRefundAndReissue" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_DeferredSalesIncentivesMember" name="DeferredSalesIncentivesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_StockActivityUnder10b51PlanMember" name="StockActivityUnder10b51PlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_BusinessCombinationsAndDispositionsAbstract" name="BusinessCombinationsAndDispositionsAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_DeferredRevenueRecognitionPeriod" name="DeferredRevenueRecognitionPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_GainLossFromDivestituresAssetImpairmentsAndUnusualItems" name="GainLossFromDivestituresAssetImpairmentsAndUnusualItems" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wm_GainLossFromDivestituresAssetImpairmentsAndOtherNoncashPortion" name="GainLossFromDivestituresAssetImpairmentsAndOtherNoncashPortion" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wm_PetroWasteEnvironmentalMember" name="PetroWasteEnvironmentalMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_LeaseDisclosureTextBlock" name="LeaseDisclosureTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_LeaseBalanceSheetDisclosureTableTextBlock" name="LeaseBalanceSheetDisclosureTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_LesseeLeaseRenewalTerm" name="LesseeLeaseRenewalTerm" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_LeaseRightOfUseAsset" name="LeaseRightOfUseAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="wm_LeaseLiability" name="LeaseLiability" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_FinancingLeasesAndOtherMember" name="FinancingLeasesAndOtherMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_AdvancedDisposalServicesMember" name="AdvancedDisposalServicesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_NumberOfCollectionOperations" name="NumberOfCollectionOperations" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_NumberOfTransferStations" name="NumberOfTransferStations" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_NumberOfLandfills" name="NumberOfLandfills" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_NumberOfOwnedOrOperatedRecyclingFacilities" name="NumberOfOwnedOrOperatedRecyclingFacilities" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_WeightedAverageNetNumberOfSharesReducedBasic" name="WeightedAverageNetNumberOfSharesReducedBasic" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <element id="wm_InvestmentWithoutReadilyDeterminableFairValueOtherThanTemporaryImpairment" name="InvestmentWithoutReadilyDeterminableFairValueOtherThanTemporaryImpairment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wm_FinanceLeaseCost" name="FinanceLeaseCost" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wm_SeniorNotesDue2026Member" name="SeniorNotesDue2026Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotesDue2028Member" name="SeniorNotesDue2028Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotesDue2029Member" name="SeniorNotesDue2029Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotesDue2032Member" name="SeniorNotesDue2032Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotesDue2039Member" name="SeniorNotesDue2039Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotes3.20PercentDueJune2026Member" name="SeniorNotes3.20PercentDueJune2026Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotes2.95PercentDueJune2024Member" name="SeniorNotes2.95PercentDueJune2024Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotes3.45PercentDueJune2029Member" name="SeniorNotes3.45PercentDueJune2029Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotes4.00PercentDueJuly2039Member" name="SeniorNotes4.00PercentDueJuly2039Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_SeniorNotes4.15PercentDueJuly2049Member" name="SeniorNotes4.15PercentDueJuly2049Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_DebtAndFinancingLeasesMaturingOrSubjectToRemarketingWithinNextTwelveMonthsClassifiedAsLongTerm" name="DebtAndFinancingLeasesMaturingOrSubjectToRemarketingWithinNextTwelveMonthsClassifiedAsLongTerm" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_DebtAndFinancingLeasesMaturingOrSubjectToRemarketingWithinNextTwelveMonths" name="DebtAndFinancingLeasesMaturingOrSubjectToRemarketingWithinNextTwelveMonths" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="wm_SeniorNotes4.75PercentDueJune2020Member" name="SeniorNotes4.75PercentDueJune2020Member" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <element id="wm_InterestExpenseInvestmentsInAffordableHousingProjects" name="InterestExpenseInvestmentsInAffordableHousingProjects" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="wm_MergerApprovalStockholdersPercentage" name="MergerApprovalStockholdersPercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" />
  <element id="wm_CanadianSeniorNotesMember" name="CanadianSeniorNotesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
</schema>
