Civic Intelligence

Port Costa Conservation Society

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.

PO Box 36Port Costa, CA 94569-0036

www.portcosta.com

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

19th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Liabilities / Revenue

20th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Net Margin

7th percentile

-46%

Higher net margin than 7% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Top Officer Pay

40th percentile

$0

Higher top officer pay than 40% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Asset Growth

35th percentile

-1.1%

Faster asset growth than 35% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Revenue Growth

10th percentile

-33%

Faster revenue growth than 10% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

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

Trend Graphs

Balance Sheet Trend

Grouped bars show assets, liabilities, and net assets across loaded filings.

$2.0M$1.5M$1.0M$500K$0Assets 2011: $1,672,874Liabilities 2011: $0Net Assets 2011: $1,672,8742011Assets 2012: $1,647,333Liabilities 2012: $0Net Assets 2012: $1,647,3332012Assets 2013: $1,583,090Liabilities 2013: $0Net Assets 2013: $1,583,0902013Assets 2014: $1,566,598Liabilities 2014: $0Net Assets 2014: $1,566,5982014Assets 2015: $1,537,606Liabilities 2015: $0Net Assets 2015: $1,537,6062015Assets 2016: $1,687,887Liabilities 2016: $0Net Assets 2016: $1,687,8872016Assets 2017: $1,728,781Liabilities 2017: $0Net Assets 2017: $1,728,7812017Assets 2018: $1,752,528Liabilities 2018: $0Net Assets 2018: $1,752,5282018Assets 2019: $1,756,809Liabilities 2019: $0Net Assets 2019: $1,756,8092019Assets 2020: $1,710,548Liabilities 2020: $0Net Assets 2020: $1,710,5482020Assets 2021: $1,688,657Liabilities 2021: $0Net Assets 2021: $1,688,6572021Assets 2022: $1,710,551Liabilities 2022: $0Net Assets 2022: $1,710,5512022Assets 2023: $1,708,219Liabilities 2023: $0Net Assets 2023: $1,708,2192023Assets 2025: $1,715,862Liabilities 2025: $0Net Assets 2025: $1,715,8622025

Highlighted filing

2025

Assets$1,715,862
Liabilities$0
Net Assets$1,715,862

Operations Trend

Revenue, expenses, and net income by year, with the latest filing highlighted.

$100K$50K$0-$50K-$100KRevenue 2011: $23,012Expenses 2011: $21,239Net Income 2011: $1,7732011Revenue 2012: -$6,342Expenses 2012: $19,199Net Income 2012: -$25,5412012Revenue 2013: -$46,558Expenses 2013: $17,685Net Income 2013: -$64,2432013Revenue 2014: $14,237Expenses 2014: $30,729Net Income 2014: -$16,4922014Revenue 2015: $12,402Expenses 2015: $41,394Net Income 2015: -$28,9922015Revenue 2016: $42,012Expenses 2016: $27,995Net Income 2016: $14,0172016Revenue 2017: $76,331Expenses 2017: $22,117Net Income 2017: $54,2142017Revenue 2018: $52,273Expenses 2018: $28,526Net Income 2018: $23,7472018Revenue 2019: $35,524Expenses 2019: $31,243Net Income 2019: $4,2812019Revenue 2020: $23,236Expenses 2020: $69,497Net Income 2020: -$46,2612020Revenue 2021: $13,592Expenses 2021: $35,483Net Income 2021: -$21,8912021Revenue 2022: $48,088Expenses 2022: $26,194Net Income 2022: $21,8942022Revenue 2023: $41,588Expenses 2023: $43,920Net Income 2023: -$2,3322023Revenue 2025: $39,650Expenses 2025: $58,049Net Income 2025: -$18,3992025

Highlighted filing

2025

Revenue$39,650
Expenses$58,049
Net Income-$18,399

Filings

Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.72$0.00$1.72$0.04$0.06$0.02
2023Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.71$0.00$1.71$0.04$0.04$0.00
2022XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.71$0.00$1.71$0.05$0.03$0.02
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.69$0.00$1.69$0.01$0.04$0.02
2020XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.71$0.00$1.71$0.02$0.07$0.05
2019Summary only. Only limited summary data is available for this year.$1.76$0.00$1.76$0.04$0.03$0.00
2018XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.75$0.00$1.75$0.05$0.03$0.02
2017XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.73$0.00$1.73$0.08$0.02$0.05
2016XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.69$0.00$1.69$0.04$0.03$0.01
2015Detailed filing. Detailed filing data is available for this year.$1.54$0.00$1.54$0.01$0.04$0.03
2014Summary only. Only limited summary data is available for this year.$1.57$0.00$1.57$0.01$0.03$0.02
2013Summary only. Only limited summary data is available for this year.$1.58$0.00$1.58$0.05$0.02$0.06
2012Summary only. Only limited summary data is available for this year.$1.65$0.00$1.65$0.01$0.02$0.03
2011Summary only. Only limited summary data is available for this year.$1.67$0.00$1.67$0.02$0.02$0.00
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Apr 1, 2024 to Mar 31, 2025
Signed
Jul 29, 2025
Return Version
2024v5.0
Gross Receipts
$39,650
Mission and Program Overview

Mission

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.

Balance Sheet Detail
LineBeginningEndChange
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 Categories

AssetBook ValueDepreciationBasis
Land$1,560,158-$1,560,158
Other Land Buildings-$13,500$13,500
Compensation and Service Providers

Board Members and Trustees

NameTitle
Jeff WilsonChairman
Janet WoodVice Chairma
Suzanne StatlerFinancial Se
Michael DomalgalskiSecretary
Anne MannTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$6,721
Program Service Revenue
$0
Investment Income
$948
Other Revenue
$31,981
All Other Contributions
$1,000
Change in Net Assets
$-18,399
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$58,049
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
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
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
No
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
Yes
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Page 6, Part VI, Line 6

Our organization is made up of members. We actively solicit memberships and all members are eligible to vote for the governing board.

Form 990, Page 6, Part VI, Line 11B

No review was or will be conducted.

Form 990, Page 6, Part VI, Line 15A

As an all volunteer organization, no one is compensated for their time. A review and approval of compensation is therefore, moot.

Form 990, Page 6, Part VI, Line 19

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.

Filing and Contact Details

Filer

Filer Name
Port Costa Conservation Society
EIN
94-2589386
Phone
5106910681
Address
PO BOX 36, PORT COSTA, CA 94569-0036

Signing Officer

Name
Anne Mann
Title
Treasurer
Phone
5106910681
Signed
2025-07-29

Organization Details

Principal Officer
Anne Mann
Formed
1985
Legal Domicile
CA
Voting Board Members
5
Independent Board Members
0
Employees
0
Volunteers
10

Preparer

Firm
Markovich Agency
Address
6654 MISSION ST, DALY CITY, CA 94014-2028
Preparer
Shirley M Thierry
Phone
6507552262
Supplemental Narrative

Additional Explanations

FORM 990 - ORGANIZATION'S MISSION

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.

Form 990, Page 2, Part III, Line 4B

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.

Form 990, Page 2, Part III, Line 4D

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.

Raw XML Appendix335 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

Path#Value
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IRS990/ActivitiesConductedPrtshpInd0false
IRS990/ActivityOrMissionDesc0PRESERVING 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/AllOtherContributionsAmt01000
IRS990/AllOtherExpensesGrp/ProgramServicesAmt05524
IRS990/AllOtherExpensesGrp/TotalAmt05524
IRS990/BackupWthldComplianceInd0false
IRS990/BooksInCareOfDetail/PersonNm0ANNE MANN
IRS990/BooksInCareOfDetail/PhoneNum05106910681
IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt08 PROSPECT AVENUE
IRS990/BooksInCareOfDetail/USAddress/AddressLine2Txt0PO BOX 45
IRS990/BooksInCareOfDetail/USAddress/CityNm0PORT COSTA
IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd0CA
IRS990/BooksInCareOfDetail/USAddress/ZIPCd094569
IRS990/BusinessRlnWith35CtrlEntInd0false
IRS990/BusinessRlnWithFamMemInd0false
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IRS990/CashNonInterestBearingGrp/BOYAmt0100433
IRS990/CashNonInterestBearingGrp/EOYAmt064404
IRS990/ChangeToOrgDocumentsInd0false
IRS990/CollectionsOfArtInd0false
IRS990/CompensationFromOtherSrcsInd0false
IRS990/CompensationProcessCEOInd0true
IRS990/CompensationProcessOtherInd0false
IRS990/ConflictOfInterestPolicyInd0false
IRS990/ConservationEasementsInd0false
IRS990/ConsolidatedAuditFinclStmtInd0false
IRS990/CreditCounselingInd0false
IRS990/CYBenefitsPaidToMembersAmt00
IRS990/CYContributionsGrantsAmt06721
IRS990/CYGrantsAndSimilarPaidAmt00
IRS990/CYInvestmentIncomeAmt0948
IRS990/CYOtherExpensesAmt058049
IRS990/CYOtherRevenueAmt031981
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IRS990/CYRevenuesLessExpensesAmt0-18399
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IRS990/CYTotalExpensesAmt058049
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IRS990/CYTotalProfFndrsngExpnsAmt00
IRS990/CYTotalRevenueAmt039650
IRS990/DecisionsSubjectToApprovaInd0false
IRS990/DeductibleArtContributionInd0false
IRS990/DeductibleNonCashContriInd0false
IRS990/DelegationOfMgmtDutiesInd0false
IRS990/Desc0THE 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/DescribedInSection501c3Ind0true
IRS990/DisregardedEntityInd0false
IRS990/DocumentRetentionPolicyInd0false
IRS990/DonorAdvisedFundInd0false
IRS990/DonorRstrOrQuasiEndowmentsInd0false
IRS990/ElectionOfBoardMembersInd0false
IRS990/EmployeeCnt00
IRS990/EngagedInExcessBenefitTransInd0false
IRS990/ExpenseAmt056067
IRS990/FamilyOrBusinessRlnInd0false
IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt0300
IRS990/FeesForServicesAccountingGrp/TotalAmt0300
IRS990/ForeignActivitiesInd0false
IRS990/ForeignFinancialAccountInd0false
IRS990/ForeignOfficeInd0false
IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt010.00
IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt110.00
IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt210.00
IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt310.00
IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt410.00
IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd0X
IRS990/Form990PartVIISectionAGrp/InstitutionalTrusteeInd1X
IRS990/Form990PartVIISectionAGrp/OfficerInd0X
IRS990/Form990PartVIISectionAGrp/OfficerInd1X
IRS990/Form990PartVIISectionAGrp/OfficerInd2X
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt00
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt10
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt20
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt30
IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt40
IRS990/Form990PartVIISectionAGrp/PersonNm0JEFF WILSON
IRS990/Form990PartVIISectionAGrp/PersonNm1ANNE MANN
IRS990/Form990PartVIISectionAGrp/PersonNm2SUZANNE STATLER
IRS990/Form990PartVIISectionAGrp/PersonNm3MICHAEL DOMALGALSKI
IRS990/Form990PartVIISectionAGrp/PersonNm4JANET WOOD
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt00
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt10
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt20
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt30
IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt40
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt00
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt10
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt20
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt30
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt40
IRS990/Form990PartVIISectionAGrp/TitleTxt0CHAIRMAN
IRS990/Form990PartVIISectionAGrp/TitleTxt1TREASURER
IRS990/Form990PartVIISectionAGrp/TitleTxt2FINANCIAL SE
IRS990/Form990PartVIISectionAGrp/TitleTxt3SECRETARY
IRS990/Form990PartVIISectionAGrp/TitleTxt4VICE CHAIRMA
IRS990/Form990ProvidedToGvrnBodyInd0true
IRS990/FormationYr01985
IRS990/FormerOfcrEmployeesListedInd0false
IRS990/FSAuditedInd0false
IRS990/FundraisingActivitiesInd0false
IRS990/GamingActivitiesInd0false
IRS990/GoverningBodyVotingMembersCnt05
IRS990/GrantsToIndividualsInd0false
IRS990/GrantsToOrganizationsInd0false
IRS990/GrantToRelatedPersonInd0false
IRS990/GrossReceiptsAmt039650
IRS990/GrossRentsGrp/RealAmt05520
IRS990/GroupReturnForAffiliatesInd0false
IRS990/IncludeFIN48FootnoteInd0false
IRS990/IndependentAuditFinclStmtInd0false
IRS990/IndependentVotingMemberCnt00
IRS990/IndoorTanningServicesInd0false
IRS990/InfoInScheduleOPartIIIInd0X
IRS990/InfoInScheduleOPartVIInd0X
IRS990/InsuranceGrp/ProgramServicesAmt012093
IRS990/InsuranceGrp/TotalAmt012093
IRS990/InvestmentIncomeGrp/ExclusionAmt0948
IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt0948
IRS990/InvestmentInJointVentureInd0false
IRS990/IRPDocumentCnt00
IRS990/IRPDocumentW2GCnt00
IRS990/LandBldgEquipAccumDeprecAmt013500
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IRS990/LegalDomicileStateCd0CA
IRS990/LoanOutstandingInd0false
IRS990/LobbyingActivitiesInd0false
IRS990/LocalChaptersInd0false
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IRS990/MembershipDuesAmt05721
IRS990/MembersOrStockholdersInd0true
IRS990/MethodOfAccountingCashInd0X
IRS990/MinutesOfCommitteesInd0true
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IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt09060
IRS990/MissionDesc0PRESERVING 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/MoreThan5000KToIndividualsInd0false
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IRS990/NetAssetsOrFundBalancesBOYAmt01734261
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IRS990/NoListedPersonsCompensatedInd0X
IRS990/NondeductibleContributionsInd0false
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IRS990/OfficerMailingAddressInd0false
IRS990/OperateHospitalInd0false
IRS990/Organization501c3Ind0X
IRS990/OrgDoesNotFollowFASB117Ind0X
IRS990/OtherExpensesGrp/Desc0COMMUNITY GARDEN
IRS990/OtherExpensesGrp/Desc1UTILITIES
IRS990/OtherExpensesGrp/Desc2BINGO SUPPLIES
IRS990/OtherExpensesGrp/Desc3MUSEUM EXPENSES
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IRS990/OtherWebsiteInd0X
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IRS990/PrincipalOfficerNm0ANNE MANN
IRS990/ProfessionalFundraisingInd0false
IRS990/ProgSrvcAccomActy2Grp/Desc0THE 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/ExpenseAmt01982
IRS990/ProgSrvcAccomActyOtherGrp/Desc0THE 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/ProhibitedTaxShelterTransInd0false
IRS990/PYContributionsGrantsAmt028449
IRS990/PYExcessBenefitTransInd0false
IRS990/PYOtherExpensesAmt058058
IRS990/PYOtherRevenueAmt030385
IRS990/PYRevenuesLessExpensesAmt0776
IRS990/PYTotalExpensesAmt058058
IRS990/PYTotalRevenueAmt058834
IRS990/ReconcilationRevenueExpnssAmt0-18399
IRS990/RelatedEntityInd0false
IRS990/RelatedOrganizationCtrlEntInd0false
IRS990/RentalIncomeOrLossGrp/RealAmt05520
IRS990/ReportInvestmentsOtherSecInd0false
IRS990/ReportLandBuildingEquipmentInd0true
IRS990/ReportOtherAssetsInd0false
IRS990/ReportOtherLiabilitiesInd0false
IRS990/ReportProgramRelatedInvstInd0false
IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt01734261
IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt01715862
IRS990/SavingsAndTempCashInvstGrp/BOYAmt073670
IRS990/SavingsAndTempCashInvstGrp/EOYAmt091300
IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt049,178
IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc0PART II, LINE 10
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt06721
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt028449
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt013572
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt032970
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt07313
IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt089025
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt0948
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt028
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt020
IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt0187
IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt01183
IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt062366
IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt027988
IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus3YearsAmt015098
IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus4YearsAmt06092
IRS990ScheduleA/OtherIncome170Grp/TotalAmt049178
IRS990ScheduleA/PublicOrganization170Ind0X
IRS990ScheduleA/PublicSupportCY170Pct00.63870
IRS990ScheduleA/PublicSupportPY170Pct00.60660
IRS990ScheduleA/PublicSupportTotal170Amt089025
IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind0X
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt06721
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt028449
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt013572
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt032970
IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt07313
IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt089025
IRS990ScheduleA/TotalSupportAmt0139386
IRS990/ScheduleBRequiredInd0false
IRS990ScheduleD/LandGrp/BookValueAmt01560158
IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt01560158
IRS990ScheduleD/OtherLandBuildingsGrp/DepreciationAmt013500
IRS990ScheduleD/OtherLandBuildingsGrp/OtherCostOrOtherBasisAmt013500
IRS990ScheduleD/TotalBookValueLandBuildingsAmt01560158
IRS990/ScheduleJRequiredInd0false
IRS990/ScheduleORequiredInd0true
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0PRESERVING 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/ExplanationTxt1THE 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/ExplanationTxt2THE 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/ExplanationTxt3OUR ORGANIZATION IS MADE UP OF MEMBERS. WE ACTIVELY SOLICIT MEMBERSHIPS AND ALL MEMBERS ARE ELIGIBLE TO VOTE FOR THE GOVERNING BOARD.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt4NO REVIEW WAS OR WILL BE CONDUCTED.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt5AS AN ALL VOLUNTEER ORGANIZATION, NO ONE IS COMPENSATED FOR THEIR TIME. A REVIEW AND APPROVAL OF COMPENSATION IS THEREFORE, MOOT.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt6ALL 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/FormAndLineReferenceDesc0FORM 990 - ORGANIZATION'S MISSION
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1FORM 990, PAGE 2, PART III, LINE 4B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2FORM 990, PAGE 2, PART III, LINE 4D
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3FORM 990, PAGE 6, PART VI, LINE 6
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4FORM 990, PAGE 6, PART VI, LINE 11B
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc5FORM 990, PAGE 6, PART VI, LINE 15A
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc6FORM 990, PAGE 6, PART VI, LINE 19
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IRS990/SignificantNewProgramSrvcInd0false
IRS990/StatesWhereCopyOfReturnIsFldCd0CA
IRS990/SubjectToExcsTaxNetInvstIncInd0false
IRS990/SubjectToProxyTaxInd0false
IRS990/SubjToTaxRmnrtnExPrchtPymtInd0false
IRS990/TaxablePartyNotificationInd0false
IRS990/TaxExemptBondsInd0false
IRS990/TerminateOperationsInd0false
IRS990/TotalAssetsBOYAmt01734261
IRS990/TotalAssetsEOYAmt01715862
IRS990/TotalAssetsGrp/BOYAmt01734261
IRS990/TotalAssetsGrp/EOYAmt01715862
IRS990/TotalCompGreaterThan150KInd0false
IRS990/TotalContributionsAmt06721
IRS990/TotalEmployeeCnt00
IRS990/TotalFunctionalExpensesGrp/FundraisingAmt00
IRS990/TotalFunctionalExpensesGrp/ManagementAndGeneralAmt00
IRS990/TotalFunctionalExpensesGrp/ProgramServicesAmt058049
IRS990/TotalFunctionalExpensesGrp/TotalAmt058049
IRS990/TotalGrossUBIAmt00
IRS990/TotalLiabilitiesEOYAmt00
IRS990/TotalLiabilitiesGrp/BOYAmt00
IRS990/TotalLiabilitiesGrp/EOYAmt00
IRS990/TotalNetAssetsFundBalanceGrp/BOYAmt01734261
IRS990/TotalNetAssetsFundBalanceGrp/EOYAmt01715862
IRS990/TotalProgramServiceExpensesAmt058049
IRS990/TotalRevenueGrp/ExclusionAmt0948
IRS990/TotalRevenueGrp/RelatedOrExemptFuncIncomeAmt031981
IRS990/TotalRevenueGrp/TotalRevenueColumnAmt039650
IRS990/TotalVolunteersCnt010
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IRS990/TrnsfrExmptNonChrtblRltdOrgInd0false
IRS990/TypeOfOrganizationCorpInd0X
IRS990/UnrelatedBusIncmOverLimitInd0false
IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt08 PROSPECT AVENUE
IRS990/USAddress/AddressLine2Txt0PO BOX 45
IRS990/USAddress/CityNm0PORT COSTA
IRS990/USAddress/StateAbbreviationCd0CA
IRS990/USAddress/ZIPCd094569
IRS990/VotingMembersGoverningBodyCnt05
IRS990/VotingMembersIndependentCnt00
IRS990/WebsiteAddressTxt0WWW.FACEBOOK.COM/PORTCOSTA
IRS990/WhistleblowerPolicyInd0false
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0ANNE MANN
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0TREASURER
ReturnHeader/BusinessOfficerGrp/PhoneNum05106910681
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-07-29
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0PORT COSTA CONSERVATION SOCIETY
ReturnHeader/Filer/BusinessNameControlTxt0PORT
ReturnHeader/Filer/EIN0942589386
ReturnHeader/Filer/PhoneNum05106910681
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO BOX 36
ReturnHeader/Filer/USAddress/CityNm0PORT COSTA
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd0945690036
ReturnHeader/IRSResponsiblePrtyInfoCurrInd0false
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0464408326
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0MARKOVICH AGENCY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt06654 MISSION ST
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0DALY CITY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd0940142028
ReturnHeader/PreparerPersonGrp/PhoneNum06507552262
ReturnHeader/PreparerPersonGrp/PreparationDt02025-07-30
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0SHIRLEY M THIERRY
ReturnHeader/PreparerPersonGrp/SelfEmployedInd0X
ReturnHeader/ReturnTs02025-07-30T18:15:31-04:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-04-01
ReturnHeader/TaxPeriodEndDt02025-03-31
ReturnHeader/TaxYr02024

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