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        <EOYAmt>110702</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>291395</BOYAmt>
        <EOYAmt>317091</EOYAmt>
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      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <PdInCapSrplsLandBldgEqpFundGrp>
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        <EOYAmt>22147931</EOYAmt>
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      <RtnEarnEndowmentIncmOthFndsGrp>
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        <EOYAmt>-1682792</EOYAmt>
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        <EOYAmt>20782230</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-274676</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>136238</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
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      <InclEscrowCustodialAcctLiabInd>false</InclEscrowCustodialAcctLiabInd>
      <LandGrp>
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        <BookValueAmt>223279</BookValueAmt>
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        <DepreciationAmt>488087</DepreciationAmt>
        <BookValueAmt>855755</BookValueAmt>
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      <OtherLandBuildingsGrp>
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        <DepreciationAmt>5743925</DepreciationAmt>
        <BookValueAmt>13241634</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>14320668</TotalBookValueLandBuildingsAmt>
      <OtherSecuritiesGrp>
        <Desc>Financial derivatives and other financial products</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Closely-held equity interests</Desc>
      </OtherSecuritiesGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Federal income taxes</Desc>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Lease liability - current</Desc>
        <Amt>38904</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Lease liability - long-term</Desc>
        <Amt>71798</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>110702</TotalLiabilityAmt>
      <TotalRevEtcAuditedFinclStmtAmt>3495767</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>136238</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>136238</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>3359529</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>3359529</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>3634205</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>3634205</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>3634205</TotalExpensesPerForm990Amt>
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    <IRS990ScheduleO documentId="990O" softwareId="25022248" softwareVersionNum="25.0.1.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part I, Section I, Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Transmit, treat, and dispose of wastewater and sewage for its members and lands, as well as to acquire, construct, install, maintain, and operate a water system for the supply and distribution of water for domestic uses and for other purposes for its members and lands.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>Distribution of water for domestic uses and for other purposes for its members and lands.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Membership of the organization is limited to owners of record of one or more platted lots or approved structures within the boundaries of the organizations service area.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, Line 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>The Directors of the organization are chosen by member vote at the annual meeting of the organization. Each member is entitled to one vote.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>After the return is prepared by an accounting firm, the treasurer reviews a copy of the draft and final form 990 for completeness and accuracy. The Form 990 is then presented to the Finance Committee of the Board. The Finance Committee reviews and distributes to the remainder of the Board. The Board approves the final copy, and the return is filed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>The officers and Board members are informed of the conflict of interest policy upon election and/or appointment to office. It a conflict of interest arises at any time during a Board members term, the individual is asked to disclose such conflict to the Board immediately. If a conflict arises, such Board member is not allowed to vote on the specific transaction.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors use comparable data when approving officers salaries. The General Manager uses a similar process to approve salaries of key employees. This process is documented.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All governing documents are available on the Coops website.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>Outside services OMI water 366,050, OMI sewer 570,577, and other of 49,713, for total outside services of 986,340.</ExplanationTxt>
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    </IRS990ScheduleO>
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