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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>249</ExclusionAmt>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>300000</TotalAmt>
        <ProgramServicesAmt>300000</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>729710</TotalAmt>
        <ProgramServicesAmt>584499</ProgramServicesAmt>
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        <FundraisingAmt>9386</FundraisingAmt>
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        <ProgramServicesAmt>24266</ProgramServicesAmt>
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        <FundraisingAmt>1125</FundraisingAmt>
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        <ManagementAndGeneralAmt>1260</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <TotalAmt>696894</TotalAmt>
        <ProgramServicesAmt>686689</ProgramServicesAmt>
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        <FundraisingAmt>4740</FundraisingAmt>
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      <OfficeExpensesGrp>
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        <ProgramServicesAmt>36553</ProgramServicesAmt>
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      <InsuranceGrp>
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      <OtherExpensesGrp>
        <Desc>Other Direct Costs</Desc>
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        <EOYAmt>181854</EOYAmt>
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        <EOYAmt>380647</EOYAmt>
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      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>38113</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>-181570</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <ConsolidatedBasisFinclStmtInd>X</ConsolidatedBasisFinclStmtInd>
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      <AuditCommitteeInd>true</AuditCommitteeInd>
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      <OtherSupportSumAmt>0</OtherSupportSumAmt>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>1310160</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>2340662</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1477155</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>720607</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>2596717</CurrentTaxYearAmt>
        <TotalAmt>8445301</TotalAmt>
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      <TaxRevLeviedOrgnztnlBnft170Grp>
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      <GovtFurnSrvcFcltsVl170Grp>
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      <TotalCalendarYear170Grp>
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      <SubstantialContributorsTotAmt>3465673</SubstantialContributorsTotAmt>
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      <GrossInvestmentIncome170Grp>
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        <CurrentTaxYearMinus3YearsAmt>506</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>324</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>190</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>249</CurrentTaxYearAmt>
        <TotalAmt>1532</TotalAmt>
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      <UnrelatedBusinessNetIncm170Grp>
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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Pt II Ln 10</FormAndLineReferenceDesc>
        <ExplanationTxt>Other Income Part II, Line 10 Description: Management Fees 2014: 52344. 2015: 53436. 2016: 51600. 2017: 51600. 2018: 51600. Description: Honoraria 2014: 14678. 2015: 11754. 2016: 11349.</ExplanationTxt>
      </Form990ScheduleAPartVIGrp>
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        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
      </ContributorInformationGrp>
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        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
      </TotalGrassrootsLobbyingGrp>
      <TotalDirectLobbyingGrp>
        <FilingOrganizationsTotalAmt>2660</FilingOrganizationsTotalAmt>
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      <TotalLobbyingExpendGrp>
        <FilingOrganizationsTotalAmt>2660</FilingOrganizationsTotalAmt>
      </TotalLobbyingExpendGrp>
      <OtherExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>2797990</FilingOrganizationsTotalAmt>
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      <TotalExemptPurposeExpendGrp>
        <FilingOrganizationsTotalAmt>2800650</FilingOrganizationsTotalAmt>
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      <LobbyingNontaxableAmountGrp>
        <FilingOrganizationsTotalAmt>290033</FilingOrganizationsTotalAmt>
      </LobbyingNontaxableAmountGrp>
      <GrassrootsNontaxableGrp>
        <FilingOrganizationsTotalAmt>72508</FilingOrganizationsTotalAmt>
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      <TotLbbyngGrassrootMnsNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
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      <TotLbbyExpendMnsLbbyngNonTxGrp>
        <FilingOrganizationsTotalAmt>0</FilingOrganizationsTotalAmt>
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      <AvgLobbyingNontaxableAmountGrp>
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        <CurrentYearMinus2Amt>272809</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>263261</CurrentYearMinus1Amt>
        <CurrentYearAmt>290033</CurrentYearAmt>
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      <LobbyingCeilingAmt>1648607</LobbyingCeilingAmt>
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        <CurrentYearMinus2Amt>963</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>1939</CurrentYearMinus1Amt>
        <CurrentYearAmt>2660</CurrentYearAmt>
        <TotalAmt>11223</TotalAmt>
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      <AvgGrassrootsNontaxableGrp>
        <CurrentYearMinus3Amt>68242</CurrentYearMinus3Amt>
        <CurrentYearMinus2Amt>68202</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>65815</CurrentYearMinus1Amt>
        <CurrentYearAmt>72508</CurrentYearAmt>
        <TotalAmt>274767</TotalAmt>
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      <GrassrootsCeilingAmt>412151</GrassrootsCeilingAmt>
      <AvgGrassrootsLobbyingExpendGrp>
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        <CurrentYearMinus2Amt>0</CurrentYearMinus2Amt>
        <CurrentYearMinus1Amt>0</CurrentYearMinus1Amt>
        <CurrentYearAmt>0</CurrentYearAmt>
        <TotalAmt>0</TotalAmt>
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        <BookValueAmt>0</BookValueAmt>
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      <EquipmentGrp>
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        <DepreciationAmt>95196</DepreciationAmt>
        <BookValueAmt>13244</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>13244</TotalBookValueLandBuildingsAmt>
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        <MethodValuationCd>C</MethodValuationCd>
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      <TotExpnsEtcAuditedFinclStmtAmt>3212615</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>230395</DonatedServicesUseFcltsAmt>
      <LossesReportedAmt>181570</LossesReportedAmt>
      <ExpensesNotReportedAmt>411965</ExpensesNotReportedAmt>
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      <TotalExpensesPerForm990Amt>2800650</TotalExpensesPerForm990Amt>
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    <IRS990ScheduleI documentId="IRS990ScheduleI-01" softwareId="18007482">
      <GrantRecordsMaintainedInd>false</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Childrens Environmental Health Network</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>110 Maryland Ave NE</AddressLine1Txt>
          <CityNm>Washington</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20002</ZIPCd>
        </USAddress>
        <RecipientEIN>522305620</RecipientEIN>
        <IRCSectionDesc>501c3</IRCSectionDesc>
        <CashGrantAmt>300000</CashGrantAmt>
        <PurposeOfGrantTxt>Prevent Lead Exposure</PurposeOfGrantTxt>
      </RecipientTable>
    </IRS990ScheduleI>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ-01">
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>4734</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>6812</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>165537</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
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    <IRS990ScheduleO documentId="IRS990ScheduleO-01" softwareId="18007482">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The CFO performs a detailed review of the Form 990 and discusses any questions with the preparer prior to submission. The return is shared with the Board members at the next meeting after the return is completed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Conflict of interest statements are completed annually by Board members &amp; key personnel. The Company handbook requires all conflicts to be disclosed &amp; resolved. Management &amp; Board members review annual statements each year to determine if any conflicts exist.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>Third-party salary analysis' are periodically conducted. This is used as a guide to determine appropriate compensation for the executive director &amp; other key staff. All staff receive annual performance reviews upon which compensation is based. The executive director is reviewed by the executive committee of the Board. Board members are independent volunteers and are not compensated.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 15b</FormAndLineReferenceDesc>
        <ExplanationTxt>Third-party salary analysis' are periodically conducted. This is used as a guide to determine appropriate compensation for the executive director &amp; other key staff. All staff receive annual performance reviews upon which compensation is based. The executive director is reviewed by the executive committee of the Board. Board members are independent volunteers and are not compensated.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The Organizations' governing documents, conflict of interest policy, and financial statements are available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt XI</FormAndLineReferenceDesc>
        <ExplanationTxt>Other decrease in net assets of $181,570 is the current year loss from subsidiary.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Healthy Housing Solutions Inc</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <USAddress>
          <AddressLine1Txt>10320 Little Patuxent Pkwy</AddressLine1Txt>
          <CityNm>Columbia</CityNm>
          <StateAbbreviationCd>MD</StateAbbreviationCd>
          <ZIPCd>21044</ZIPCd>
        </USAddress>
        <EIN>200387562</EIN>
        <PrimaryActivitiesTxt>Technical Consulting</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MD</LegalDomicileStateCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <EntityTypeTxt>C</EntityTypeTxt>
        <ShareOfTotalIncomeAmt>682121</ShareOfTotalIncomeAmt>
        <ShareOfEOYAssetsAmt>177234</ShareOfEOYAssetsAmt>
        <OwnershipPct>1.00000</OwnershipPct>
        <ControlledOrganizationInd>true</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>true</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>true</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Healthy Housing Solutions Inc (Services Performed FOR)</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>l</TransactionTypeTxt>
        <InvolvedAmt>193406</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Actual Cost</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Healthy Housing Solutions Inc (FacilitiesEquip Sharing)</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>n</TransactionTypeTxt>
        <InvolvedAmt>53894</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Actual Cost</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>Healthy Housing Solutions Inc (Reimbursed Expenses FROM)</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>q</TransactionTypeTxt>
        <InvolvedAmt>31021</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>Actual Cost</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>