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            <StateAbbreviationCd>OH</StateAbbreviationCd>
            <ZIPCd>45226</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Sludge removal</ServicesDesc>
        <CompensationAmt>1282199</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>John Eramo &amp; Sons Inc</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>3670 Lacon Road</AddressLine1Txt>
            <CityNm>Hilliard</CityNm>
            <StateAbbreviationCd>OH</StateAbbreviationCd>
            <ZIPCd>43026</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Excavating Contractor</ServicesDesc>
        <CompensationAmt>4853077</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>US Bank</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>425 Walnut Street</AddressLine1Txt>
            <CityNm>Cincinnati</CityNm>
            <StateAbbreviationCd>OH</StateAbbreviationCd>
            <ZIPCd>45202</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Pension Plan</ServicesDesc>
        <CompensationAmt>850000</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>35</CntrctRcvdGreaterThan100KCnt>
      <ProgramServiceRevenueGrp>
        <Desc>Water Sales</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>30360212</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Tap Fees</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>8646495</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
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        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>150554</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Membership Fees</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>18671</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>88984</TotalRevenueColumnAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>39264916</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>475656</ExclusionAmt>
      </InvestmentIncomeGrp>
      <GrossRentsGrp>
        <RealAmt>162856</RealAmt>
      </GrossRentsGrp>
      <RentalIncomeOrLossGrp>
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      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>162856</TotalRevenueColumnAmt>
        <ExclusionAmt>162856</ExclusionAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
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      </GrossAmountSalesAssetsGrp>
      <GainOrLossGrp>
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      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>10500</ExclusionAmt>
      </NetGainOrLossInvestmentsGrp>
      <OtherRevenueMiscGrp>
        <Desc>Contributions in Aid</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>1230864</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1230864</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>Engineering Plan Inspection</Desc>
        <BusinessCd>221000</BusinessCd>
        <TotalRevenueColumnAmt>140929</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>140929</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>Pip Relocation Fee</Desc>
        <BusinessCd>221000</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>33013</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      <MiscellaneousRevenueGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
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      </MiscellaneousRevenueGrp>
      <OtherRevenueTotalAmt>1408560</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>41322488</TotalRevenueColumnAmt>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>649012</ExclusionAmt>
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      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>529800</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OtherSalariesAndWagesGrp>
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      <PensionPlanContributionsGrp>
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      <OtherEmployeeBenefitsGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <PayrollTaxesGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <FeesForServicesAccountingGrp>
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      <OfficeExpensesGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <OccupancyGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <TravelGrp>
        <TotalAmt>248288</TotalAmt>
        <ProgramServicesAmt>0</ProgramServicesAmt>
        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <InterestGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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        <FundraisingAmt>0</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Materials &amp; Supplies</Desc>
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        <ManagementAndGeneralAmt>0</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Chemicals</Desc>
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        <FundraisingAmt>0</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Maintenance &amp; Repairs</Desc>
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      <OtherExpensesGrp>
        <Desc>Sludge Removal</Desc>
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      <AllOtherExpensesGrp>
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      <TotalFunctionalExpensesGrp>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>42625069</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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        <EOYAmt>194490371</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>188500</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>192196290</BOYAmt>
        <EOYAmt>194678871</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>237303940</EOYAmt>
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      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>12930785</ReconcilationRevenueExpnssAmt>
      <PriorPeriodAdjustmentsAmt>-10448204</PriorPeriodAdjustmentsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>true</FederalGrantAuditRequiredInd>
      <FederalGrantAuditPerformedInd>true</FederalGrantAuditPerformedInd>
    </IRS990>
    <IRS990ScheduleD documentId="IRS990ScheduleD-01" softwareId="19009670">
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        <OtherCostOrOtherBasisAmt>12387320</OtherCostOrOtherBasisAmt>
        <BookValueAmt>12387320</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>208473651</TotalBookValueLandBuildingsAmt>
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        <Amt>186018</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Capital Lease Liability</Desc>
        <Amt>508841</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Deferred Revenue</Desc>
        <Amt>79194</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Pension Liability</Desc>
        <Amt>10448204</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>11222257</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>41322488</TotalRevEtcAuditedFinclStmtAmt>
      <RevenueSubtotalAmt>41322488</RevenueSubtotalAmt>
      <TotalRevenuePerForm990Amt>41322488</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>28391703</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>28391703</ExpensesSubtotalAmt>
      <TotalExpensesPerForm990Amt>28391703</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt X, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The Company is exempt from income taxes under the provisions of Section 501(c)(12) of the Internal Revenue Code. The Company's Forms 990, Return of Organization Exempt from Income Tax, beginning with the fiscal year ended April 30, 2017 are subject to examination by the IRS, generally for three years after they were filed.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ-01">
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      <WrittenPolicyRefTAndEExpnssInd>true</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>true</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Glenn R Marzluf</PersonNm>
        <BaseCompensationFilingOrgAmt>188905</BaseCompensationFilingOrgAmt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>37661</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6900</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>233466</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Shane F Clark</PersonNm>
        <BaseCompensationFilingOrgAmt>162824</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>104516</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>7500</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>274840</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Spencer T Sheldon</PersonNm>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>28986</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6200</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>160678</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt I Line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>Spouses of board members may attend the annual national rural water association meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="19009670">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>Mr. Dawson rents farm ground from Mr. Sheets (former board member) and Mr. McNamara.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Del-Co is a member-owned water company. All water users are members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Members elect directors at the annual meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>All actions of the board are subject to comments and input by the membership at the annual meeting.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 was distributed to each Board Member, the General Manager/CEO and the Controller for their review prior to filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board of Directors monitors compliance through inquiry and personal knowledge.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The Personnel Committee of the Board of Directors meets annually to prepare a performance review of the General Manager/CEO and make a salary recommendation to the Board. The Board of Directors approves the General Manager/CEO's salary.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents are available upon request at Del-Co's administration office. Audited financial statements are distributed to members attending the annual meeting or members may request them in writing from the General Manager/CEO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt XI</FormAndLineReferenceDesc>
        <ExplanationTxt>Line 8 - Del-Co restated beginning net assets as part of its implementation of ASU 2017-07.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>