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        <CurrentTaxYearMinus1YearAmt>23267</CurrentTaxYearMinus1YearAmt>
        <TotalAmt>32517</TotalAmt>
      </OtherIncome170Grp>
      <TotalSupportAmt>1198076</TotalSupportAmt>
      <GrossReceiptsRltdActivitiesAmt>17904</GrossReceiptsRltdActivitiesAmt>
      <PublicSupportCY170Pct>0.97290</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.96890</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>PART II, LINE 10</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER INCOME 32,517</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="RetDoc3">
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>10726</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>5975</DepreciationAmt>
        <BookValueAmt>4751</BookValueAmt>
      </EquipmentGrp>
      <TotalBookValueLandBuildingsAmt>4751</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>FEDERAL PAYROLL TAXES</Desc>
        <Amt>2105</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>LOCAL WITHHOLDING TAXES</Desc>
        <Amt>676</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>PA STATE WITHHOLDING TAXES</Desc>
        <Amt>325</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>SUTA PAYABLE</Desc>
        <Amt>54</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>3160</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc4">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MIDDLE SUSQUEHANNA RIVERKEEPER ASSOCIATION'S MISSION IS TO PROTECT AND PROMOTE THE SUSQUEHANNA RIVER, ITS TRIBUTARIES AND THE AQUATIC ECOSYSTEM IT SUPPORTS ACROSS AN 11,000-SQUARE-MILE WATERSHED REPRESENTED AS THE MIDDLE SUSQUEHANNA RIVER BASIN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4D</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS SUPPORTED THE CLEAN WATER ADVOCACY WORK OF THE MIDDLE SUSQUEHANNA RIVER AREA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>NO REVIEW WAS OR WILL BE CONDUCTED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>NO DOCUMENTS AVAILABLE TO THE PUBLIC</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
        <ExplanationTxt>RECONCILIATION DISCREPANCIES 39</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>