Liabilities / Assets
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
EIN 94-2589386 • 501(c)3 • Port Costa, CA
Profile
Preserving For Public Benefit 83 Acres East of Port Costa as a wildlife preserve and the Historic 1911 Port Costa School Building, which is on the National Register of Historic Places, as an historical resource for community, civic & recreational uses.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
19th percentile
Tied with the lowest-debt nonprofits in its peer group.
Liabilities / Revenue
20th percentile
Tied with the lowest-debt nonprofits in its peer group.
Net Margin
7th percentile
Higher net margin than 7% of similar nonprofits.
Top Officer Pay
40th percentile
Higher top officer pay than 40% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
35th percentile
Faster asset growth than 35% of similar nonprofits.
Revenue Growth
10th percentile
Faster revenue growth than 10% of similar nonprofits.
Assets
Up$1,715,862
Up $7,643 (+0.4%) from 2023
Liabilities
Flat$0
Flat from 2023
Net Assets
Up$1,715,862
Up $7,643 (+0.4%) from 2023
Revenue
Down$39,650
Down $1,938 (-4.7%) from 2023
Expenses
Up$58,049
Up $14,129 (+32%) from 2023
Net Income
Down-$18,399
Down $16,067 (-689%) from 2023
Most recent year
2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.
Preserving For Public Benefit 83 Acres East of Port Costa as a wildlife preserve and the Historic 1911 Port Costa School Building, which is on the National Register of Historic Places, as an historical resource for community, civic & recreational uses.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Rtn Earn Endowment Incm Other Fnds | $1,734,261 | $1,715,862 | ▼ $18,399 |
| Land, Buildings, and Equipment, Net | $1,560,158 | $1,560,158 | → $0 |
| Savings and Temporary Cash Investments | $73,670 | $91,300 | ▲ $17,630 |
| Cash and Non-Interest-Bearing Accounts | $100,433 | $64,404 | ▼ $36,029 |
| Total Assets | $1,734,261 | $1,715,862 | ▼ $18,399 |
| Liabilities | |||
| Total Liabilities | $0 | $0 | → $0 |
| Net Assets / Fund Balance | |||
| Total Net Assets Fund Balance | $1,734,261 | $1,715,862 | ▼ $18,399 |
| Total Liabilities and Net Assets / Fund Balance | $1,734,261 | $1,715,862 | ▼ $18,399 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Land | $1,560,158 | - | $1,560,158 |
| Other Land Buildings | - | $13,500 | $13,500 |
| Name | Title |
|---|---|
| Jeff Wilson | Chairman |
| Janet Wood | Vice Chairma |
| Suzanne Statler | Financial Se |
| Michael Domalgalski | Secretary |
| Anne Mann | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $58,049 |
| 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 |
|---|---|---|---|---|
| Insurance | $12,093 | - | - | $12,093 |
| All Other Expenses | $5,524 | - | - | $5,524 |
| Other Expenses | $3,224 | - | - | $3,224 |
| Office Expenses | $385 | - | - | $385 |
| Fees for Services Accounting | $300 | - | - | $300 |
| Total Functional Expenses | $58,049 | $0 | $0 | $58,049 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Our organization is made up of members. We actively solicit memberships and all members are eligible to vote for the governing board.”
“No review was or will be conducted.”
“As an all volunteer organization, no one is compensated for their time. A review and approval of compensation is therefore, moot.”
“All of our governing documents, policies and financial statements are avai lable to the public upon request. The tax returns can be viewed on the web site for the state of california attorney general under charities.”
“Preserving for public benefit 83 acres east of port costa as a wildlife preserve and the historic 1911 port costa school building, which is on the national register of historic places, as an historical resource for community, civic & recreational uses.”
“The port costa school building, playground and ballfield are maintained for public benefit and as an historical resource and is operated use by the public,including recreation, community and civic uses. The building is the only public building in port costa is on the national register of historic places. The society continues to seek grants and contributions for this project.the building serves not only the local community, but vistors to port costa and the surrounding parklands with 95% of the structural repairs completed and the storm drain diverted around the facility instead of under the building, we continue to expand use of the building while continuing with the restoration. We have completed installation of a new electrical service panel and much of the wiring replacement. A new fire sprinkler system for the building also been installed and is now operational.”
“The society has established hiking, biking and riding trails, in addionion to a vista point on its scenic and wildlife preservation property. The historic wagon road, used as the trail templet, starts at the building property and ties into the east bay regional park district's (ebrpd) carquinez shoreline park property and carquinez strait scencic loop trail, thus providing a vital link in the area's trail system. The vista point is at the highest elevation on the preserve and provides spectacular views of carquinez strati, mt. Diablo and nearby parklands. The trails are open to drive no direct revenue from the property. Direct expenses associated with the property are from property taxes only.”
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 | false |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | PRESERVING FOR PUBLIC BENEFIT 83 ACRES EAST OF PORT COSTA AS A WILDLIFE PRESERVE AND THE HISTORIC 1911 PORT COSTA SCHOOL BUILDING, WHICH IS ON THE NATIONAL REGISTER OF HISTORIC PLACES, AS AN HISTORICAL RESOURCE FOR COMMUNITY, CIVIC & RECREATIONAL USES. |
| IRS990/AllOtherContributionsAmt | 0 | 1000 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 5524 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 5524 |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | ANNE MANN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5106910681 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 8 PROSPECT AVENUE |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine2Txt | 0 | PO BOX 45 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | PORT COSTA |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94569 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 100433 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 64404 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | false |
| IRS990/ConflictOfInterestPolicyInd | 0 | false |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 6721 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 948 |
| IRS990/CYOtherExpensesAmt | 0 | 58049 |
| IRS990/CYOtherRevenueAmt | 0 | 31981 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 0 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -18399 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 58049 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 39650 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/Desc | 0 | THE SOCIETY HAS ESTABLISHED HIKING, BIKING AND RIDING TRAILS, IN ADDITION TO A VISTA POINT ON ITS SCENIC AND WILDLIFE PRESERVATION PROPERTY. THE HISTORIC WAGON ROAD, USED AS THE TRAIL TEMPLET, STARTS AT THE BUILDING PROPERTY AND TIES INTO THE EAST BAY REGIONAL PARK DISTRICT'S (EBRPD) CARQUINEZ SHORELINE PARK PROPERTY AND CARQUINEZ STRAIT SCENCIC LOOP TRAIL, THUS PROVIDING A VITAL LINK IN THE AREA'S TRAIL SYSTEM. THE VISTA POINT IS AT THE HIGHEST ELEVATION ON THE PRESERVE AND PROVIDES SPECTACULAR VIEWS OF CARQUINEZ STRATI, MT. DIABLO AND NEARBY PARKLANDS. THE TRAILS ARE OPEN TO THE GENERAL PUBLIC, DURING DAYLIGHT HOURS AND ARE CURRENTLY MAINTAINED BY EBRPD. WE DERIVE NO DIRECT REVENUE FROM THE PROPERTY. DIRECT EXPENSES ASSOCIATED WITH THE PROPERTY ARE FROM PROPERTY TAXES ONLY. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | false |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | false |
| IRS990/ElectionOfBoardMembersInd | 0 | false |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 56067 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 300 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 300 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 10.00 |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd | 1 | 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 |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ANNE MANN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | SUZANNE STATLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | MICHAEL DOMALGALSKI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JANET WOOD |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIRMAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | FINANCIAL SE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | VICE CHAIRMA |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1985 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedInd | 0 | false |
| IRS990/FundraisingActivitiesInd | 0 | false |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 5 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossReceiptsAmt | 0 | 39650 |
| IRS990/GrossRentsGrp/RealAmt | 0 | 5520 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | false |
| IRS990/IndependentAuditFinclStmtInd | 0 | false |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 12093 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 12093 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 948 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 948 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 13500 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 1560158 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 1560158 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 1573658 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembershipDuesAmt | 0 | 5721 |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingCashInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | true |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MiscellaneousRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 9060 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 9060 |
| IRS990/MissionDesc | 0 | PRESERVING FOR PUBLIC BENEFIT 83 ACRES EAST OF PORT COSTA AS A WILDLIFE PRESERVE AND THE HISTORIC 1911 PORT COSTA SCHOOL BUILDING, WHICH IS ON THE NATIONAL REGISTER OF HISTORIC PLACES, AS AN HISTORICAL RESOURCE FOR COMMUNITY, CIVIC & RECREATIONAL USES. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1734261 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 1715862 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 5520 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 5520 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 385 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 385 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherExpensesGrp/Desc | 0 | COMMUNITY GARDEN |
| IRS990/OtherExpensesGrp/Desc | 1 | UTILITIES |
| IRS990/OtherExpensesGrp/Desc | 2 | BINGO SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 3 | MUSEUM EXPENSES |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 23217 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 8944 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 4362 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 3224 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 23217 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 8944 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 4362 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 3224 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 2 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | BINGO BAR/DONATIONS |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | TOWN WIDE YARDSALE |
| IRS990/OtherRevenueMiscGrp/Desc | 2 | PC MUSEUM DONATION |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 9652 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 4799 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 2 | 2950 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 9652 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 4799 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 2 | 2950 |
| IRS990/OtherRevenueTotalAmt | 0 | 26461 |
| IRS990/OtherWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrincipalOfficerNm | 0 | ANNE MANN |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE PORT COSTA SCHOOL BUILDING, PLAYGROUND AND BALLFIELD ARE MAINTAINED FOR PUBLIC BENEFIT AND AS AN HISTORICAL RESOURCE AND IS OPERATED USE BY THE PUBLIC,INCLUDING RECREATION, COMMUNITY AND CIVIC USES. THE BUILDING IS THE ONLY PUBLIC BUILDING IN PORT COSTA IS ON THE NATIONAL REGISTER OF HISTORIC PLACES. THE SOCIETY CONTINUES TO SEEK GRANTS AND CONTRIBUTIONS FOR THIS PROJECT.THE BUILDING SERVES NOT ONLY THE LOCAL COMMUNITY, BUT VISTORS TO PORT COSTA AND THE SURROUNDING PARKLANDS WITH 95% OF THE STRUCTURAL REPAIRS COMPLETED AND THE STORM DRAIN DIVERTED AROUND THE FACILITY INSTEAD OF UNDER THE BUILDING, WE CONTINUE TO EXPAND USE OF THE BUILDING WHILE CONTINUING WITH THE RESTORATION. WE HAVE COMPLETED INSTALLATION OF A NEW ELECTRICAL SERVICE PANEL AND MUCH OF THE WIRING REPLACEMENT. A NEW FIRE SPRINKLER SYSTEM FOR THE BUILDING ALSO BEEN INSTALLED AND IS NOW OPERATIONAL. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 1982 |
| IRS990/ProgSrvcAccomActyOtherGrp/Desc | 0 | THE SOCIETY HAS ESTABLISHED HIKING, BIKING AND RIDING TRAILS, IN ADDIONION TO A VISTA POINT ON ITS SCENIC AND WILDLIFE PRESERVATION PROPERTY. THE HISTORIC WAGON ROAD, USED AS THE TRAIL TEMPLET, STARTS AT THE BUILDING PROPERTY AND TIES INTO THE EAST BAY REGIONAL PARK DISTRICT'S (EBRPD) CARQUINEZ SHORELINE PARK PROPERTY AND CARQUINEZ STRAIT SCENCIC LOOP TRAIL, THUS PROVIDING A VITAL LINK IN THE AREA'S TRAIL SYSTEM. THE VISTA POINT IS AT THE HIGHEST ELEVATION ON THE PRESERVE AND PROVIDES SPECTACULAR VIEWS OF CARQUINEZ STRATI, MT. DIABLO AND NEARBY PARKLANDS. THE TRAILS ARE OPEN TO DRIVE NO DIRECT REVENUE FROM THE PROPERTY. DIRECT EXPENSES ASSOCIATED WITH THE PROPERTY ARE FROM PROPERTY TAXES ONLY. |
| IRS990/ProhibitedTaxShelterTransInd | 0 | false |
| IRS990/PYContributionsGrantsAmt | 0 | 28449 |
| IRS990/PYExcessBenefitTransInd | 0 | false |
| IRS990/PYOtherExpensesAmt | 0 | 58058 |
| IRS990/PYOtherRevenueAmt | 0 | 30385 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 776 |
| IRS990/PYTotalExpensesAmt | 0 | 58058 |
| IRS990/PYTotalRevenueAmt | 0 | 58834 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | -18399 |
| IRS990/RelatedEntityInd | 0 | false |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | false |
| IRS990/RentalIncomeOrLossGrp/RealAmt | 0 | 5520 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | false |
| IRS990/ReportLandBuildingEquipmentInd | 0 | true |
| IRS990/ReportOtherAssetsInd | 0 | false |
| IRS990/ReportOtherLiabilitiesInd | 0 | false |
| IRS990/ReportProgramRelatedInvstInd | 0 | false |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 1734261 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 1715862 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 73670 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 91300 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | 49,178 |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | PART II, LINE 10 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 6721 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 28449 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 13572 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 32970 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 7313 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 89025 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 948 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 28 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 20 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 187 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 1183 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 62366 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 27988 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 15098 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 6092 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 49178 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.63870 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.60660 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 89025 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 6721 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 28449 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 13572 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 32970 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 7313 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 89025 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 139386 |
| IRS990/ScheduleBRequiredInd | 0 | false |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 1560158 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 1560158 |
| IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt | 0 | 13500 |
| IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 13500 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 1560158 |
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| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | PRESERVING FOR PUBLIC BENEFIT 83 ACRES EAST OF PORT COSTA AS A WILDLIFE PRESERVE AND THE HISTORIC 1911 PORT COSTA SCHOOL BUILDING, WHICH IS ON THE NATIONAL REGISTER OF HISTORIC PLACES, AS AN HISTORICAL RESOURCE FOR COMMUNITY, CIVIC & RECREATIONAL USES. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | THE PORT COSTA SCHOOL BUILDING, PLAYGROUND AND BALLFIELD ARE MAINTAINED FOR PUBLIC BENEFIT AND AS AN HISTORICAL RESOURCE AND IS OPERATED USE BY THE PUBLIC,INCLUDING RECREATION, COMMUNITY AND CIVIC USES. THE BUILDING IS THE ONLY PUBLIC BUILDING IN PORT COSTA IS ON THE NATIONAL REGISTER OF HISTORIC PLACES. THE SOCIETY CONTINUES TO SEEK GRANTS AND CONTRIBUTIONS FOR THIS PROJECT.THE BUILDING SERVES NOT ONLY THE LOCAL COMMUNITY, BUT VISTORS TO PORT COSTA AND THE SURROUNDING PARKLANDS WITH 95% OF THE STRUCTURAL REPAIRS COMPLETED AND THE STORM DRAIN DIVERTED AROUND THE FACILITY INSTEAD OF UNDER THE BUILDING, WE CONTINUE TO EXPAND USE OF THE BUILDING WHILE CONTINUING WITH THE RESTORATION. WE HAVE COMPLETED INSTALLATION OF A NEW ELECTRICAL SERVICE PANEL AND MUCH OF THE WIRING REPLACEMENT. A NEW FIRE SPRINKLER SYSTEM FOR THE BUILDING ALSO BEEN INSTALLED AND IS NOW OPERATIONAL. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | THE SOCIETY HAS ESTABLISHED HIKING, BIKING AND RIDING TRAILS, IN ADDIONION TO A VISTA POINT ON ITS SCENIC AND WILDLIFE PRESERVATION PROPERTY. THE HISTORIC WAGON ROAD, USED AS THE TRAIL TEMPLET, STARTS AT THE BUILDING PROPERTY AND TIES INTO THE EAST BAY REGIONAL PARK DISTRICT'S (EBRPD) CARQUINEZ SHORELINE PARK PROPERTY AND CARQUINEZ STRAIT SCENCIC LOOP TRAIL, THUS PROVIDING A VITAL LINK IN THE AREA'S TRAIL SYSTEM. THE VISTA POINT IS AT THE HIGHEST ELEVATION ON THE PRESERVE AND PROVIDES SPECTACULAR VIEWS OF CARQUINEZ STRATI, MT. DIABLO AND NEARBY PARKLANDS. THE TRAILS ARE OPEN TO DRIVE NO DIRECT REVENUE FROM THE PROPERTY. DIRECT EXPENSES ASSOCIATED WITH THE PROPERTY ARE FROM PROPERTY TAXES ONLY. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 3 | OUR ORGANIZATION IS MADE UP OF MEMBERS. WE ACTIVELY SOLICIT MEMBERSHIPS AND ALL MEMBERS ARE ELIGIBLE TO VOTE FOR THE GOVERNING BOARD. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 4 | NO REVIEW WAS OR WILL BE CONDUCTED. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 5 | AS AN ALL VOLUNTEER ORGANIZATION, NO ONE IS COMPENSATED FOR THEIR TIME. A REVIEW AND APPROVAL OF COMPENSATION IS THEREFORE, MOOT. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 6 | ALL OF OUR GOVERNING DOCUMENTS, POLICIES AND FINANCIAL STATEMENTS ARE AVAI LABLE TO THE PUBLIC UPON REQUEST. THE TAX RETURNS CAN BE VIEWED ON THE WEB SITE FOR THE STATE OF CALIFORNIA ATTORNEY GENERAL UNDER CHARITIES. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990 - ORGANIZATION'S MISSION |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990, PAGE 2, PART III, LINE 4B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990, PAGE 2, PART III, LINE 4D |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 3 | FORM 990, PAGE 6, PART VI, LINE 6 |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 4 | FORM 990, PAGE 6, PART VI, LINE 11B |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 5 | FORM 990, PAGE 6, PART VI, LINE 15A |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 6 | FORM 990, PAGE 6, PART VI, LINE 19 |
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| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | ANNE MANN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
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| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2025-07-29 |
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| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2025-07-30 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | SHIRLEY M THIERRY |
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| ReturnHeader/ReturnTs | 0 | 2025-07-30T18:15:31-04:00 |
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| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-04-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-03-31 |
| ReturnHeader/TaxYr | 0 | 2024 |
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