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      <Form990PartVIISectionAGrp>
        <PersonNm>Anir Bhagwat</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Chathu Abeyrathna</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Chris Newton</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Eric Van Cleave</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Garry Parker</PersonNm>
        <TitleTxt>Director</TitleTxt>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Ian Mackenzie</PersonNm>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Jerry Barajas</PersonNm>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>John Vogel</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Jon Liberzon</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>Kevin Street</PersonNm>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Lucia Diaz</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Michael Walkowiak</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Ryan Sellman</PersonNm>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Stephanie Douglass</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Sushmitha Reddy</PersonNm>
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        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <ProgramServiceRevenueGrp>
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      <NetIncomeOrLossGrp>
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        <BusinessCd>900099</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>42914</RelatedOrExemptFuncIncomeAmt>
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        <UnrelatedBusinessRevenueAmt>21014</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>139001</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
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      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
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      <BenefitsToMembersGrp>
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      <FeesForServicesLegalGrp>
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      <FeesForServicesLobbyingGrp>
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        <ProgramServicesAmt>694871</ProgramServicesAmt>
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        <ProgramServicesAmt>26341</ProgramServicesAmt>
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        <ProgramServicesAmt>66019</ProgramServicesAmt>
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        <EOYAmt>294627</EOYAmt>
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        <EOYAmt>3047735</EOYAmt>
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        <EOYAmt>3440227</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>6487962</EOYAmt>
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      <NetUnrlzdGainsLossesInvstAmt>48337</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>127947</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
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      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
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        <FormAndLineReferenceDesc>Part X : FIN48 Footnote</FormAndLineReferenceDesc>
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        <PersonNm>Philipp Miller</PersonNm>
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        <FormAndLineReferenceDesc>Part I, Line 1a: Relevant information in regards to selections on 1a.</FormAndLineReferenceDesc>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 1a</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Member categories with voting privileges are: active members, ProfessionalWastewater Operations (PWO) members, corporate members, utility members, studentmembers, association members, retired members, water environment, federationhonorary and life members, and association past presidents. No member may receive ashare of the organization's profits or excess dues or a share of net assets afterdissolution. Approximately 11,000 water environment professionals are members of CWEA The majority of members work for public agencies throughout the state, with additional representation from consulting and engineering firms, equipment manufacturers, educators, and industry partners supporting the wastewater sector. CWEA is a member association of the Water Environment Federation (WEF), a not-for-profit technical and educational organization with members from varied disciplines who work toward the WEF vision of preservation and enhancement of the global water environment. The WEF network includes water quality professionals from 75 member associations in 30 countries.</ExplanationTxt>
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        <ExplanationTxt>The Associations audit firm prepares a draft tax return in concert with conductingthe Associations annual audit. The Audit Committee reviews the draft tax return.Once the Form 990 together with its required schedules (the Final Form 990) are infinal form, the Executive Director brings the Final Form 990 to the next Board ofDirectors meeting within the filing deadline and provides a copy to each boardmember. If there is no Board meeting within the filing deadline, the Executive Director provides an electronic copy of the Final Form 990 to each board member.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization reviews any potential disclosed conflicts and identifies wherethese could arise in actual business operations. If a conflict exists or haspotential to exist, the organization relies on the Procedures to Manage Conflictsof Interests" section of the Conflict of Interest Policy.</ExplanationTxt>
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