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    <ReturnTs>2025-03-28T15:21:12-04:00</ReturnTs>
    <TaxPeriodEndDt>2024-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-01-01</TaxPeriodBeginDt>
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      <EIN>916048498</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>WEST SIDE WATER CO INC</BusinessNameLine1Txt>
      </BusinessName>
      <InCareOfNm>% Mary Kay Sam Lanier</InCareOfNm>
      <BusinessNameControlTxt>WEST</BusinessNameControlTxt>
      <ForeignPhoneNum>2065674568</ForeignPhoneNum>
      <USAddress>
        <AddressLine1Txt>PO BOX 267</AddressLine1Txt>
        <CityNm>VASHON</CityNm>
        <StateAbbreviationCd>WA</StateAbbreviationCd>
        <ZIPCd>980700267</ZIPCd>
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    <BusinessOfficerGrp>
      <PersonNm>Holly Shull Vogel</PersonNm>
      <PersonTitleTxt>Treasurer</PersonTitleTxt>
      <SignatureDt>2025-03-29</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
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    <IRS990EZ documentId="IRS990EZ" softwareId="24020569" softwareVersionNum="V2.0" documentName="IRS990EZ" referenceDocumentName="IRS990ScheduleO ReasonableCauseExplanation TransfersPersonalBenefitsContractsDeclaration BinaryAttachment">
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>www.westsidewater.org</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="12">X</Organization501cInd>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>164454</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ProgramServiceRevenueAmt>157594</ProgramServiceRevenueAmt>
      <MembershipDuesAmt>2964</MembershipDuesAmt>
      <InvestmentIncomeAmt>1396</InvestmentIncomeAmt>
      <GainOrLossFromSaleOfAssetsAmt>0</GainOrLossFromSaleOfAssetsAmt>
      <SpecialEventsNetIncomeLossAmt>0</SpecialEventsNetIncomeLossAmt>
      <GrossProfitLossSlsOfInvntryAmt>0</GrossProfitLossSlsOfInvntryAmt>
      <OtherRevenueTotalAmt>2500</OtherRevenueTotalAmt>
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      <PrintingPublicationsPostageAmt>531</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>44534</OtherExpensesTotalAmt>
      <TotalExpensesAmt>124902</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>39552</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>245083</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>-45</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>284590</NetAssetsOrFundBalancesEOYAmt>
      <InfoInScheduleOPartIIInd>X</InfoInScheduleOPartIIInd>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>287511</BOYAmt>
        <EOYAmt>334085</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>287511</BOYAmt>
        <EOYAmt>334085</EOYAmt>
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      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>42428</BOYAmt>
        <EOYAmt>49495</EOYAmt>
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      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>245083</BOYAmt>
        <EOYAmt>284590</EOYAmt>
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      <PrimaryExemptPurposeTxt>To deliver safe drinking water to member properties</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>Successfully delivered safe drinking water for domestic use for all member properties</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>0</GrantsAndAllocationsAmt>
        <ProgramServiceExpensesAmt>0</ProgramServiceExpensesAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Mary Kay Lanier</PersonNm>
        <TitleTxt>President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Holly Shull Vogel</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
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        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Douglas Swan</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Peter Meyers</PersonNm>
        <TitleTxt>At Large Board Member</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>5</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">David Hawkins</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
        <EmployeeBenefitProgramAmt>0</EmployeeBenefitProgramAmt>
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      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
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      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
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        <BusinessName>
          <BusinessNameLine1Txt>Island Water Management Inc</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>11205 SW Corbin Beach Road</AddressLine1Txt>
          <CityNm>Vashon</CityNm>
          <StateAbbreviationCd>WA</StateAbbreviationCd>
          <ZIPCd>980703312</ZIPCd>
        </USAddress>
        <PhoneNum>2067153805</PhoneNum>
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      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
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      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 8</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Revenues:, Amount:| Receipts from PSE for property easement - $2500, $2500|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>| Other Expenses:, Amount:| Capital Expense: $ 26,484; Insurance: $5081; Licenses Permits Fees: $386; Office: $ 6222; Public Utility Taxes: $ 696; Tax filing: $180; Water treatment monitoring: $ 5416; TOTAL: $ 44534, $44534|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, line 20</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, Amount:| Other changes in Assets Fund Balances: $45 - 2023 reconciliation discrepancy, $-45|</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II, line 26</FormAndLineReferenceDesc>
        <ExplanationTxt>| Explanation:, BOYAmount:, EOYAmount:| Total Liabilities: $1705 - Billing Overpayments by WWA members$613 - Funds voluntarily collected from members and paid quarterly to El Porvenir another non-profit organization that provides sanitation and clean drinking water for underserved areas of the worls$6010 - Public Utility Tax collected from members to be paid to WA DOR $41,167 - Funds collected from WWA members for payment of King County WA Right-of-Way rent. Total: 49,495, $42428, $49495|</ExplanationTxt>
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