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      <Form990PartVIISectionAGrp>
        <PersonNm>Christie Patel</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Joseph Tarsavage</PersonNm>
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      <Form990PartVIISectionAGrp>
        <PersonNm>Nancy E Descano</PersonNm>
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      <Form990PartVIISectionAGrp>
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        <ProgramServicesAmt>4730</ProgramServicesAmt>
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        <Desc>Direct Program Expenses</Desc>
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        <ProgramServicesAmt>148213</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>Sub-Grant Expenses</Desc>
        <TotalAmt>86744</TotalAmt>
        <ProgramServicesAmt>86744</ProgramServicesAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>52835</ProgramServicesAmt>
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        <FundraisingAmt>7985</FundraisingAmt>
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      <OtherExpensesGrp>
        <Desc>Computer Expense</Desc>
        <TotalAmt>22336</TotalAmt>
        <ProgramServicesAmt>12055</ProgramServicesAmt>
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        <FundraisingAmt>4450</FundraisingAmt>
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      <AllOtherExpensesGrp>
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        <ProgramServicesAmt>25891</ProgramServicesAmt>
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        <TotalAmt>3061538</TotalAmt>
        <ProgramServicesAmt>2507613</ProgramServicesAmt>
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        <EOYAmt>793975</EOYAmt>
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        <EOYAmt>2067489</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-160009</ReconcilationRevenueExpnssAmt>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
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        <CurrentTaxYearMinus3YearsAmt>1971081</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1989753</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2653026</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2833810</CurrentTaxYearAmt>
        <TotalAmt>11443132</TotalAmt>
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        <CurrentTaxYearMinus2YearsAmt>1989753</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2653026</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2833810</CurrentTaxYearAmt>
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        <CurrentTaxYearMinus3YearsAmt>5252</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4095</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>5112</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>9447</CurrentTaxYearAmt>
        <TotalAmt>30193</TotalAmt>
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        <CurrentTaxYearAmt>20403</CurrentTaxYearAmt>
        <TotalAmt>35053</TotalAmt>
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    <IRS990ScheduleB documentId="RetDoc1234500001" />
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      <MediaAdvertisementsInd>0</MediaAdvertisementsInd>
      <MailingsMembersInd>0</MailingsMembersInd>
      <PublicationsOrBroadcastInd>0</PublicationsOrBroadcastInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part II-B, Line 1:</FormAndLineReferenceDesc>
        <ExplanationTxt>In 2017, PDE's lobbying activities consisted of communication by its Executive Director with elected/appointed officials by phone, email, and in person to express support for Federal funding for the National Estuary Program, Federal reauthorization of the National Estuary Program, Advancement of the Delaware River Basin Conservation Act in Congress, State of Delaware funding for the Delaware Estuary. The total expenses amount to $2,702 for 2017.</ExplanationTxt>
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      <RevenueSubtotalAmt>2901529</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
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      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Direct fundraising expenses netted against revenue in Form 990 -</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Direct fundraising expenses netted against revenue in Form 990 -</ExplanationTxt>
      </SupplementalInformationDetail>
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      <FundraisingEventInformationGrp>
        <Event1Nm>Annual Event</Event1Nm>
        <GrossReceiptsEvent1Amt>94457</GrossReceiptsEvent1Amt>
        <CharitableContriEvent1Amt>76609</CharitableContriEvent1Amt>
        <GrossRevenueEvent1Amt>17848</GrossRevenueEvent1Amt>
        <OtherDirectExpensesEvent1Amt>17848</OtherDirectExpensesEvent1Amt>
        <Event2Nm>Highmark Walk</Event2Nm>
        <GrossReceiptsEvent2Amt>11025</GrossReceiptsEvent2Amt>
        <CharitableContriEvent2Amt>2515</CharitableContriEvent2Amt>
        <GrossRevenueEvent2Amt>8510</GrossRevenueEvent2Amt>
        <OtherDirectExpensesEvent2Amt>6093</OtherDirectExpensesEvent2Amt>
        <GrossReceiptsTotalAmt>105482</GrossReceiptsTotalAmt>
        <CharitableContributionsTotAmt>79124</CharitableContributionsTotAmt>
        <GrossRevenueTotalEventsAmt>26358</GrossRevenueTotalEventsAmt>
        <OthDirectExpnssTotalEventsAmt>23941</OthDirectExpnssTotalEventsAmt>
        <DirectExpenseSummaryEventsAmt>23941</DirectExpenseSummaryEventsAmt>
        <NetIncomeSummaryAmt>2417</NetIncomeSummaryAmt>
      </FundraisingEventInformationGrp>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>Form 990 is distributed to Board; the Executive Director, CFO and Executive committee review Form 990 prior to its filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members are asked annually to disclose any interests that could give rise to a conflict. The policy is regularly monitored by the Executive Director.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The Partnership uses comparability data when determining the Executive Director's and key employees' salaries.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents are available upon reequest at the PDE offices during regular business hours.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Contracted services: Program service expenses 995,070. Management and general expenses 7,629. Fundraising expenses -5. Total expenses 1,002,694. Professional Services: Program service expenses 3,282. Management and general expenses 25,553. Fundraising expenses 0. Total expenses 28,835.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>