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        <ManagementAndGeneralAmt>2196</ManagementAndGeneralAmt>
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        <Desc>MEMBERSHIP &amp; DUES</Desc>
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        <EOYAmt>11077</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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        <BOYAmt>1009133</BOYAmt>
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      <ReconcilationRevenueExpnssAmt>269829</ReconcilationRevenueExpnssAmt>
      <PriorPeriodAdjustmentsAmt>1</PriorPeriodAdjustmentsAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>220773</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>272824</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>331548</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>946102</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1064330</CurrentTaxYearAmt>
        <TotalAmt>2835577</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>220773</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>272824</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>331548</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>946102</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1064330</CurrentTaxYearAmt>
        <TotalAmt>2835577</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>158828</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>2676749</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>7110</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>13648</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>8297</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>28626</CurrentTaxYearAmt>
        <TotalAmt>57681</TotalAmt>
      </GrossInvestmentIncome170Grp>
      <OtherIncome170Grp>
        <CurrentTaxYearMinus4YearsAmt>150</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>7569</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>3299</CurrentTaxYearAmt>
        <TotalAmt>11018</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>2904276</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>24091</GrossReceiptsRltdActivitiesAmt>
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      <PublicSupportPY170Pct>0.87250</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME:</FormAndLineReferenceDesc>
        <ExplanationTxt>MISCELLANEOUS INCOME - 2019 AMOUNT: $ 150. 2021 AMOUNT: $ 7,569. 2023 AMOUNT: $ 3,299.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
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        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
    </IRS990ScheduleB>
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        <OtherCostOrOtherBasisAmt>26644</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>13927</DepreciationAmt>
        <BookValueAmt>12717</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>12717</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>OPERATING LEASE PAYABLE</Desc>
        <Amt>11056</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>11056</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>1096255</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueNotReportedAmt>0</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1096255</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1096255</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>826426</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>826426</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>826426</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SECTION 1.263(A)-1(F) DE MINIMIS SAFE HARBOR ELECTION</FormAndLineReferenceDesc>
        <ExplanationTxt>BAYOU CITY WATERKEEPER INC 4900 TRAVIS ST, SUITE 209 HOUSTON, TX 77002 EMPLOYER IDENTIFICATION NUMBER: 26-0187498 FOR THE YEAR ENDING DECEMBER 31, 2023 BAYOU CITY WATERKEEPER INC IS MAKING THE DE MINIMIS SAFE HARBOR ELECTION UNDER REG. SEC. 1.263 A)-1(F).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PROVIDED TO ALL BOARD MEMBERS FOR REVIEW BEFORE RETURN IS FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>THE LAST REVIEW WAS CONDUCTED IN FEBRUARY 2024.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S PROCESS FOR ASSUMING RESPONSIBILITY FOR OVERSIGHT OF THE AUDIT, REVIEW, OR COMPILATION OF ITS FINANCIAL STATEMENTS AND THE SELECTION OF AN INDEPENDENT AUDITOR HAVE NOT CHANGED FROM THE PRIOR YEAR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>