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        <BOYAmt>31557</BOYAmt>
        <EOYAmt>57891</EOYAmt>
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      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
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      <DonorRestrictionNetAssetsGrp>
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        <EOYAmt>5551259</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>67585</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>28639</NetUnrlzdGainsLossesInvstAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
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        <CurrentTaxYearMinus1YearAmt>205891</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>179309</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>8622</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1726</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus1YearAmt>90227</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>155777</CurrentTaxYearAmt>
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      </InvestmentIncomeAndUBTIGrp>
      <NetIncomeFromOtherUBIGrp>
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        <CurrentTaxYearMinus2YearsAmt>865981</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>296118</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>336119</CurrentTaxYearAmt>
        <TotalAmt>4948623</TotalAmt>
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      <PublicSupportCY509Pct>0.77550</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.78810</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.07880</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.05540</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <InvestmentEarningsOrLossesAmt>6361</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1033535</EndYearBalanceAmt>
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      <CYMinus1YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>7733</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1027174</EndYearBalanceAmt>
      </CYMinus1YrEndwmtFundGrp>
      <CYMinus2YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1014099</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>5342</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1019441</EndYearBalanceAmt>
      </CYMinus2YrEndwmtFundGrp>
      <CYMinus3YrEndwmtFundGrp>
        <BeginningYearBalanceAmt>1015094</BeginningYearBalanceAmt>
        <InvestmentEarningsOrLossesAmt>-995</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1014099</EndYearBalanceAmt>
      </CYMinus3YrEndwmtFundGrp>
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        <InvestmentEarningsOrLossesAmt>-406</InvestmentEarningsOrLossesAmt>
        <EndYearBalanceAmt>1015094</EndYearBalanceAmt>
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      <PrmnntEndowmentBalanceEOYPct>0.84279</PrmnntEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>0</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>0</EndowmentsHeldRelatedOrgInd>
      <TotalBookValueLandBuildingsAmt>0</TotalBookValueLandBuildingsAmt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>ENDOWMENT FUNDS WILL BE USED TO FURTHER ADVANCE THE KNOWLEDGE AND SCIENCE OF HIGH QUALITY, SUSTAINABLE WATER.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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        <Event1Nm>MID YEAR EVENT</Event1Nm>
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        <CharitableContriEvent1Amt>52000</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>15440</GrossRevenueEvent1Amt>
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        <OtherEventsTotalCnt>1</OtherEventsTotalCnt>
        <GrossReceiptsOtherEventsAmt>5100</GrossReceiptsOtherEventsAmt>
        <GrossRevenueOtherEventsAmt>5100</GrossRevenueOtherEventsAmt>
        <GrossReceiptsTotalAmt>72540</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>52000</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>20540</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>19507</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>19507</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>1033</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
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      <GrantRecordsMaintainedInd>0</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>PURDUE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>23510 NETWORK PLACE</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60673</ZIPCd>
        </USAddress>
        <RecipientEIN>356002041</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>0</CashGrantAmt>
        <NonCashAssistanceAmt>35000</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>PFAS FILTER STUDY</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>DESERT RESEARCH INSTITUTE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>2215 RAGGIO PARKWAY</AddressLine1Txt>
          <CityNm>RENO</CityNm>
          <StateAbbreviationCd>NV</StateAbbreviationCd>
          <ZIPCd>89512</ZIPCd>
        </USAddress>
        <RecipientEIN>886000024</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>0</CashGrantAmt>
        <NonCashAssistanceAmt>11999</NonCashAssistanceAmt>
        <PurposeOfGrantTxt>REDUCING CONTAMINATIONS IN DRINKING WATER STUDY</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>2</Total501c3OrgCnt>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOUNDATION HAS ENTERED INTO AN AGREEMENT WITH WATER QUALITY ASSOCIATION TO PROVIDE THE FOUNDATION WITH MANAGEMENT AND ACCOUNTING SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>IRS FORM 990 WILL BE REVIEWED BY THE EXECUTIVE BOARD. COPIES OF IRS FORM 990 WILL BE MADE AVAILABLE TO THE ORGANIZATION'S OFFICERS AND TRUSTEE(S) WHO ARE ASKED TO REVIEW THE RETURN INDIVIDUALLY AND TO CONTACT THE RETURN PREPARER, OTHER BOARD MEMBERS OR EXECUTIVE OFFICERS WITH ANY QUESTIONS OR CONCERNS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY IS REVIEWED ANNUALLY, ALL BOARD MEMBERS ARE REMINDED OF THIS POLICY AND BOARD MEMBER RESPONSIBILITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS NO PAID EMPLOYEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>