PORT COSTA CONSERVATION SOCIETY

Financials

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended March 31, 2026, highest compensation first.

Address and contacts

Address (IRS master file)

PO BOX 36, PORT COSTA, CA 94569-0036

Principal officer (990 for 2025)

ANNE MANN, 8 PROSPECT AVENUE, PO BOX 45, PORT COSTA, CA 94569

Signed the 990

ANNE MANN, TREASURER

Phone

(510) 691-0681

Website

WWW.FACEBOOK.COM/PORTCOSTA

Return prepared by

MARKOVICH AGENCY

California records

California keeps its own records of charities and corporations. Search them by EIN 94-2589386 or by the name PORT COSTA CONSERVATION SOCIETY.

Attorney General, Registry of Charities and Fundraisers

Registration status and filed reports (CT-TR-1, RRF-1)

Secretary of State, bizfile Online

Corporation status, entity number, agent for service

Franchise Tax Board

Entity status letter (state tax exemption, good standing)

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.

Program accomplishments

• 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.
  Expenses $82,657 · revenue $75,150
• 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.
  Expenses $3,444
• 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.

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.

IRS record

EIN

94-2589386

Tax-exempt status

501(c)(3): Charitable, religious, educational or scientific organization

Foundation status

Publicly supported organization (170(b)(1)(A)(vi))

Donations deductible (Pub 78)

Public charity, 50% deduction limit

Exempt since

1979

Accounting year ends

March

Files

Form 990 or 990-EZ

Category (NTEE)

Environment (C340)

Assets (IRS master file)

$1,705,668

Income (IRS master file)

$75,150

Filing history

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 94-2589386).

Questions about PORT COSTA CONSERVATION SOCIETY

What is the EIN of PORT COSTA CONSERVATION SOCIETY?

The employer identification number (EIN) of PORT COSTA CONSERVATION SOCIETY is 94-2589386.

Is PORT COSTA CONSERVATION SOCIETY tax-exempt?

Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1979.

Are donations to PORT COSTA CONSERVATION SOCIETY tax-deductible?

Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).

Which annual return does PORT COSTA CONSERVATION SOCIETY file?

Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.

When is the next return of PORT COSTA CONSERVATION SOCIETY due?

The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.

When did PORT COSTA CONSERVATION SOCIETY last file with the IRS?

The latest return in the IRS public files is the 990 for the year ended March 2026.

Who is the principal officer of PORT COSTA CONSERVATION SOCIETY?

The 990 for the year ended March 31, 2026 names ANNE MANN.

Who are the officers and directors of PORT COSTA CONSERVATION SOCIETY?

The 990 for the year ended March 31, 2026 lists 5 people; 0 received compensation from the organization.

How much revenue does PORT COSTA CONSERVATION SOCIETY have?

On its 990 for the year ended March 31, 2026 it reported revenue of $75,150, expenses of $86,101 and total assets of $1,705,668 at year end.

Other nonprofits in PORT COSTA

• BULL VALLEY AGRICULTURAL CENTER
  EIN 47-1839132 · last filed 990 for 2025
• LITA OF CONTRA COSTA
  EIN 94-2766013 · last filed 990-N for 2025

All nonprofits in PORT COSTA · California · Environment