Liabilities / Assets
39th percentile
Higher debt load relative to assets than 39% of similar nonprofits.
EIN 26-4236346 • 501(c)3 • Chestnut Hill, MA
Profile
Waterworks preservation trust, inc., (wpt) pursuant to provisions of the 2005 lda which prescribes its fiduciary responsibilities, acts as a trustee for the endowment that benefits the metropolitan waterworks museum, inc.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
39th percentile
Higher debt load relative to assets than 39% of similar nonprofits.
Liabilities / Revenue
54th percentile
Higher debt load relative to revenue than 54% of similar nonprofits.
Net Margin
64th percentile
Higher net margin than 64% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
62nd percentile
Faster asset growth than 62% of similar nonprofits.
Revenue Growth
79th percentile
Faster revenue growth than 79% of similar nonprofits.
Assets
Up$2,750,947
Up $83,253 (+3.1%) from 2023
Liabilities
Up$66,293
Up $2,735 (+4.3%) from 2023
Net Assets
Up$2,684,654
Up $80,518 (+3.1%) from 2023
Revenue
Down$669,218
Down $28,294 (-4.1%) from 2023
Expenses
Up$588,700
Up $206,561 (+54%) from 2023
Net Income
Down$80,518
Down $234,855 (-74%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
Waterworks preservation trust, inc., (wpt) pursuant to provisions of the 2005 land disposition agreement (lda), as amended, that prescribes its fiduciary responsibilities, acts as a trustee for the endowment that benefits the metropolitan waterworks museum, inc.
Waterworks preservation trust, inc., pursuant to provisions of the 2005 land disposition agreement (lda), as amended, which states the fiduciary responsibilities, acts as a trustee for the endowment for the benefit of the metropolitan waterworks museum, inc.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Savings and Temporary Cash Investments | $2,593,924 | $2,686,785 | ▲ $92,861 |
| Cash and Non-Interest-Bearing Accounts | $61,293 | $53,149 | ▼ $8,144 |
| Accounts Receivable | $12,477 | $11,013 | ▼ $1,464 |
| Total Assets | $2,667,694 | $2,750,947 | ▲ $83,253 |
| Liabilities | |||
| Other Liabilities | $63,558 | $66,293 | ▲ $2,735 |
| Total Liabilities | $63,558 | $66,293 | ▲ $2,735 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $1,404,136 | $1,484,654 | ▲ $80,518 |
| Net Assets With Donor Restrictions | $1,200,000 | $1,200,000 | → $0 |
| Total Net Assets Fund Balance | $2,604,136 | $2,684,654 | ▲ $80,518 |
| Total Liabilities and Net Assets / Fund Balance | $2,667,694 | $2,750,947 | ▲ $83,253 |
| Name | Title |
|---|---|
| Elaine C Pierce | President |
| Edward Berger | Trustee |
| George Cole | Trustee |
| Stephen Rosenthal | Trustee |
| William Luzier Jr | Trustee |
| Roger Blood | Secretary |
| Dennis J Dewitt | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $588,700 |
| Grants and Similar Amounts Paid | $0 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Expenses | $27,590 | $561,110 | - | $27,590 |
| Total Functional Expenses | $27,590 | $561,110 | $0 | $588,700 |
| Line Item | Amount |
|---|---|
| Expenses per Audited Statements | $588,700 |
| Total Expenses per Audited Statements | $588,700 |
| Total Expenses per Form 990 | $588,700 |
| Expenses Not Reported on Financial Statements | $0 |
| Expenses Not Reported on Form 990 | $0 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Due to Affiliates | $66,293 |
“Final returns are reviewed by the board of directors prior to filing.”
“All board members are required to sign a conflict of interest statement which is regularly reviewed and monitored at least on an annual basis and/or when necessary.”
“Governing documents are available upon request.”
“Intendend uses of endowment fund - net assets with donor restrictions (formerly, permanently restricted net assets) consists of $1,200,000 for the benefit of the metropolitan waterworks museum, inc. In accordance with the provision of the lda authorized by the state of massachusetts division of capital and asset management ("dcam").”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 12477 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 11013 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | WATERWORKS PRESERVATION TRUST, INC., PURSUANT TO PROVISIONS OF THE 2005 LAND DISPOSITION AGREEMENT (LDA), AS AMENDED, WHICH STATES THE FIDUCIARY RESPONSIBILITIES, ACTS AS A TRUSTEE FOR THE ENDOWMENT FOR THE BENEFIT OF THE METROPOLITAN WATERWORKS MUSEUM, INC. |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | THE ORGANIZATION |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6172770065 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 2450 BEACON ST |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | CHESTNUT HILL |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 02467 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 61293 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 53149 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 325391 |
| IRS990/CYOtherExpensesAmt | 0 | 588700 |
| IRS990/CYOtherRevenueAmt | 0 | 0 |
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| IRS990/CYRevenuesLessExpensesAmt | 0 | 80518 |
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| IRS990/CYTotalExpensesAmt | 0 | 588700 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 669218 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
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| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/Desc | 0 | WATERWORKS PRESERVATION TRUST, INC., PURSUANT TO PROVISIONS OF THE 2005 LDA, AS AMENDED, THAT PRESCRIBES ITS FIDUCIARY RESPONSIBILITIES, ACTS AS A TRUSTEE FOR THE ENDOWMENT THAT BENEFITS THE METROPOLITAN WATERWORKS MUSEUM, INC. |
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| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
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| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1200000 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 27590 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
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| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | EDWARD BERGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | WILLIAM LUZIER JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | GEORGE COLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | STEPHEN ROSENTHAL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | ELAINE C PIERCE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DENNIS J DEWITT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ROGER BLOOD |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
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| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | TRUSTEE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | SECRETARY |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2006 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 7 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 669218 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 7 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 325391 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 325391 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | MA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | WATERWORKS PRESERVATION TRUST, INC., (WPT) PURSUANT TO PROVISIONS OF THE 2005 LAND DISPOSITION AGREEMENT (LDA), AS AMENDED, THAT PRESCRIBES ITS FIDUCIARY RESPONSIBILITIES, ACTS AS A TRUSTEE FOR THE ENDOWMENT THAT BENEFITS THE METROPOLITAN WATERWORKS MUSEUM, INC. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 2604136 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2684654 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1404136 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1484654 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | Program expenses |
| IRS990/OtherExpensesGrp/Desc | 1 | PROGRAM SERVICES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 561110 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 27590 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 561110 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 27590 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 63558 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 66293 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrincipalOfficerNm | 0 | DENNIS DEWITT |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 561499 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 110000 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | CONDOMINIUM FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | TRANSFER FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | EASEMENT FEES |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 217213 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 82556 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 44058 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 217213 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 82556 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 44058 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/PYInvestmentIncomeAmt | 0 | 377657 |
| IRS990/PYOtherExpensesAmt | 0 | 382139 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 319855 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 315373 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 382139 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 697512 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 80518 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 2593924 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 2686785 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/Contribution35ControlledInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionControllerInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ContributionFamilyInd | 0 | 0 |
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| IRS990ScheduleA/Form990SchASupportingOrgGrp/DisqualifiedPrsnOwnrIntInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ExcessBusinessHoldingsRulesInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/ListedByNameGoverningDocInd | 0 | 1 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/LoanDisqualifiedPersonInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/OrganizationChangeSuprtOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/PaymentSubstantialContribtrInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgNotOrganizedUSInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportedOrgSectionC456Ind | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SupportNonSupportedOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchASupportingOrgGrp/SuprtOrgNoIRSDeterminationInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/OperateBenefitNonSuprtOrgInd | 0 | 0 |
| IRS990ScheduleA/Form990SchAType1SuprtOrgGrp/PowerAppointMajorityDirTrstInd | 0 | 1 |
| IRS990ScheduleA/OtherSupportSumAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrganizationsCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrganizationsTotalCnt | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/EIN | 0 | 043251784 |
| IRS990ScheduleA/SupportedOrgInformationGrp/GoverningDocumentListedInd | 0 | 1 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OrganizationTypeCd | 0 | 7 |
| IRS990ScheduleA/SupportedOrgInformationGrp/OtherSupportAmt | 0 | 0 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportAmt | 0 | 561110 |
| IRS990ScheduleA/SupportedOrgInformationGrp/SupportedOrganizationName/BusinessNameLine1Txt | 0 | METROPOLITAN WATERWORKS MUSEUM INC METROPOLITAN WATERWORKS MUSEUM INC |
| IRS990ScheduleA/SupportingOrganization509a3Ind | 0 | X |
| IRS990ScheduleA/SupportingOrgType1Ind | 0 | X |
| IRS990ScheduleA/SupportSumAmt | 0 | 561110 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 588700 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Amt | 0 | 66293 |
| IRS990ScheduleD/OtherLiabilitiesOrgGrp/Desc | 0 | DUE TO AFFILIATES |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 669218 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | INTENDEND USES OF ENDOWMENT FUND - NET ASSETS WITH DONOR RESTRICTIONS (FORMERLY, PERMANENTLY RESTRICTED NET ASSETS) CONSISTS OF $1,200,000 FOR THE BENEFIT OF THE METROPOLITAN WATERWORKS MUSEUM, INC. IN ACCORDANCE WITH THE PROVISION OF THE LDA AUTHORIZED BY THE STATE OF MASSACHUSETTS DIVISION OF CAPITAL AND ASSET MANAGEMENT ("DCAM"). |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | SUPPLEMENTAL FINANCIAL INFORMATION |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 588700 |
| IRS990ScheduleD/TotalLiabilityAmt | 0 | 66293 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 669218 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 669218 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 588700 |
| IRS990/ScheduleJRequiredInd | 0 | 0 |
| IRS990/ScheduleORequiredInd | 0 | 1 |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | FINAL RETURNS ARE REVIEWED BY THE BOARD OF DIRECTORS PRIOR TO FILING. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | ALL BOARD MEMBERS ARE REQUIRED TO SIGN A CONFLICT OF INTEREST STATEMENT WHICH IS REGULARLY REVIEWED AND MONITORED AT LEAST ON AN ANNUAL BASIS AND/OR WHEN NECESSARY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | GOVERNING DOCUMENTS ARE AVAILABLE UPON REQUEST. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990, Part VI, Section B, line 11b |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | Form 990, Part VI, Section B, line 12c |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | Form 990, Part VI, Section C, line 19 |
| IRS990ScheduleR/AssetExchangeInd | 0 | 0 |
| IRS990ScheduleR/AssetPurchaseFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/AssetSaleToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/DivRelatedOrganizationInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntCapContriFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/GiftGrntOrCapContriToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ControlledOrganizationInd | 0 | 0 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DirectControllingNACd | 0 | N/A |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/DisregardedEntityName/BusinessNameLine1Txt | 0 | METROPOLITAN WATERWORKS MUSEUM INC |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/EIN | 0 | 043251784 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/ExemptCodeSectionTxt | 0 | 501(c)(3) |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/LegalDomicileStateCd | 0 | MA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PrimaryActivitiesTxt | 0 | MWM |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/PublicCharityStatusTxt | 0 | Line 3 |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/AddressLine1Txt | 0 | 2450 BEACON STREET |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/CityNm | 0 | CHESTNUT HILL |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990ScheduleR/IdRelatedTaxExemptOrgGrp/USAddress/ZIPCd | 0 | 02467 |
| IRS990ScheduleR/LoansOrGuaranteesFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/LoansOrGuaranteesToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PaidEmployeesSharingInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesByOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/PerformOfServicesForOthOrgInd | 0 | 0 |
| IRS990ScheduleR/ReceiptOfIntAnntsRntsRyltsInd | 0 | 0 |
| IRS990ScheduleR/ReimbursementPaidByOtherOrgInd | 0 | 1 |
| IRS990ScheduleR/ReimbursementPaidToOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/RentalOfFacilitiesToOthOrgInd | 0 | 0 |
| IRS990ScheduleR/RentalOfFcltsFromOthOrgInd | 0 | 0 |
| IRS990ScheduleR/SharingOfFacilitiesInd | 0 | 0 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/InvolvedAmt | 0 | 561110 |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/MethodOfAmountDeterminationTxt | 0 | FMV |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/OtherOrganizationName/BusinessNameLine1Txt | 0 | METROPOLITIAN WATERWORKS MUSEUM IN |
| IRS990ScheduleR/TransactionsRelatedOrgGrp/TransactionTypeTxt | 0 | R |
| IRS990ScheduleR/TransferFromOtherOrgInd | 0 | 0 |
| IRS990ScheduleR/TransferToOtherOrgInd | 0 | 1 |
| IRS990/SchoolOperatingInd | 0 | 0 |
| IRS990/SignificantChangeInd | 0 | 0 |
| IRS990/SignificantNewProgramSrvcInd | 0 | 0 |
| IRS990/StatesWhereCopyOfReturnIsFldCd | 0 | MA |
| IRS990/SubjectToExcsTaxNetInvstIncInd | 0 | 0 |
| IRS990/SubjectToProxyTaxInd | 0 | 0 |
| IRS990/SubjToTaxRmnrtnExPrchtPymtInd | 0 | 0 |
| IRS990/TaxablePartyNotificationInd | 0 | 0 |
| IRS990/TaxExemptBondsInd | 0 | 0 |
| IRS990/TerminateOperationsInd | 0 | 0 |
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| IRS990/TotalAssetsEOYAmt | 0 | 2750947 |
| IRS990/TotalAssetsGrp/BOYAmt | 0 | 2667694 |
| IRS990/TotalAssetsGrp/EOYAmt | 0 | 2750947 |
| IRS990/TotalCompGreaterThan150KInd | 0 | 0 |
| IRS990/TotalEmployeeCnt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt | 0 | 561110 |
| IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt | 0 | 27590 |
| IRS990/TotalFunctionalExpensesGrp/TotalAmt | 0 | 588700 |
| IRS990/TotalGrossUBIAmt | 0 | 0 |
| IRS990/TotalLiabilitiesBOYAmt | 0 | 63558 |
| IRS990/TotalLiabilitiesEOYAmt | 0 | 66293 |
| IRS990/TotalLiabilitiesGrp/BOYAmt | 0 | 63558 |
| IRS990/TotalLiabilitiesGrp/EOYAmt | 0 | 66293 |
| IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt | 0 | 2604136 |
| IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt | 0 | 2684654 |
| IRS990/TotalOtherCompensationAmt | 0 | 0 |
| IRS990/TotalProgramServiceExpensesAmt | 0 | 27590 |
| IRS990/TotalProgramServiceRevenueAmt | 0 | 343827 |
| IRS990/TotalReportableCompFromOrgAmt | 0 | 0 |
| IRS990/TotalRevenueGrp/ExclusionAmt | 0 | 325391 |
| IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 343827 |
| IRS990/TotalRevenueGrp/TotalRevenueColumnAmt | 0 | 669218 |
| IRS990/TotalRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/TotalVolunteersCnt | 0 | 0 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/BOYAmt | 0 | 2667694 |
| IRS990/TotLiabNetAssetsFundBalanceGrp/EOYAmt | 0 | 2750947 |
| IRS990/TotReportableCompRltdOrgAmt | 0 | 0 |
| IRS990/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990/TypeOfOrganizationCorpInd | 0 | X |
| IRS990/UnrelatedBusIncmOverLimitInd | 0 | 0 |
| IRS990/UponRequestInd | 0 | X |
| IRS990/USAddress/AddressLine1Txt | 0 | 2450 BEACON STREET |
| IRS990/USAddress/CityNm | 0 | CHESTNUT HILL |
| IRS990/USAddress/StateAbbreviationCd | 0 | MA |
| IRS990/USAddress/ZIPCd | 0 | 02467 |
| IRS990/VotingMembersGoverningBodyCnt | 0 | 7 |
| IRS990/VotingMembersIndependentCnt | 0 | 7 |
| IRS990/WebsiteAddressTxt | 0 | WWW.WATERWORKSMUSEUM.ORG |
| IRS990/WhistleblowerPolicyInd | 0 | 1 |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | DENNIS DEWITT |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6172770065 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-08-07 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | WATERWORKS PRESERVATION TRUST INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | WATE |
| ReturnHeader/Filer/EIN | 0 | 264236346 |
| ReturnHeader/Filer/PhoneNum | 0 | 6172770065 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | 2450 BEACON ST |
| ReturnHeader/Filer/USAddress/CityNm | 0 | CHESTNUT HILL |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 02467 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 0 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 471096596 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | Raffol and Company Inc |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 105 Chestnut Street Suite 11 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Needham |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MA |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 02492 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 7814444926 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-08-07 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Jonathan Vitale |
| ReturnHeader/ReturnTs | 0 | 2025-08-07T12:06:52-05:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990 |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2024-12-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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