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THE MONO LAKE FOUNDATION

EIN 77-0051124 LEE VINING, CA

Largest nonprofits in California

Revenue 2024
$5,226,688
Expenses 2024
$4,113,833

Program services were 87.6% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
T30
Classification
1000
Street
PO BOX 29

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

THE MONO LAKE FOUNDATION (KNOWN AS THE MONO LAKE COMMITTEE) IS A NON-PROFIT CITIZEN'S GROUP DEDICATED TO PROTECTING AND RESTORING MONO LAKE, ITS TRIBUTARY STREAMS, AND SURROUNDING LANDS, EDUCATING THE PUBLIC ABOUT MONO LAKE AND THE IMPACTS ON THE ENVIRONMENT OF EXCESSIVE WATER USE, AND PROMOTING COOPERATIVE SOLUTIONS THAT PROTECT MONO LAKE AND MEET REAL WATER NEEDS WITHOUT TRANSFERRING ENVIRONMENTAL PROBLEMS TO OTHER AREAS.

Activities or mission (Part I)

PRESERVE AND PROTECT MONO LAKE.

  • PROTECTION & RESTORATION: THE MONO LAKE COMMITTEE PROTECTS THE ECOLOGICAL HEALTH AND SCENIC QUALITIES OF MONO LAKE, ITS TRIBUTARY STREAMS, AND SURROUNDING LANDS. THE COMMITTEE ADVOCATES AND IMPLEMENTS RESTORATION PROGRAMS THAT HEAL THE DAMAGE DONE BY EXCESSIVE WATER DIVERSIONS TO LOS ANGELES IN PAST DECADES INCLUDING RAISING MONO LAKE TO THE STATE-MANDATED ECOLOGICALLY SUSTAINABLE LEVEL AND RESTORING THE HEALTH OF MONO'S TRIBUTARY STREAMS AND WATERFOWL HABITAT. WORKING CLOSELY WITH OUR COMMUNITY AND STATE, FEDERAL, AND REGIONAL GROUPS, THE MONO LAKE COMMITTEE SEEKS TO DEMONSTRATE THE INTERCONNECTION BETWEEN A HEALTHY ECOSYSTEM AND A SUSTAINABLE ECONOMY. THE MONO LAKE COMMITTEE'S STATEWIDE WATER POLICY WORK FOCUSES ON USING THE LESSONS LEARNED AT MONO LAKE AS A TOOL TO ADVOCATE FOR CONSERVATION, RECLAMATION, AND WISE WATER USE. THE MONO LAKE COMMITTEE ALSO MAINTAINS AN ACTIVE PRESENCE IN LOS ANGELES, REFLECTING THE LONG-TERM INTERTWINED RELATIONSHIP BETWEEN THE CITY AND MONO LAKE.

    Expenses $3,604,347 · Grants $37,910 · Revenue $174,841

  • EDUCATION: THE MONO LAKE COMMITTEE SEEKS TO SHARE THE MONO LAKE STORY WITH THE GENERAL PUBLIC AND A DIVERSE RANGE OF SCHOOLS AND COMMUNITY GROUPS. EDUCATION PROGRAMS INCLUDE INTERPRETIVE WALKS AND CANOE TOURS AT MONO LAKE, BIRD WALKS, ENVIRONMENTAL EDUCATION FOR SCHOOL GROUPS, WEEKEND FIELD SEMINARS, A PUBLIC INFORMATION CENTER WITH EXHIBITS AND A FILM, AND THE OUTDOOR EDUCATION CENTER THAT CONNECTS LOS ANGELES YOUTH TO THE SOURCE OF THEIR WATER. THESE PROGRAMS, WHICH REACH THOUSANDS OF PEOPLE ANNUALLY, EMPHASIZE PERSONAL ENVIRONMENTAL RESPONSIBILITY THROUGH UNDERSTANDING THE BALANCE BETWEEN MONO LAKE'S UNIQUE ECOSYSTEM AND HUMANS' NEED FOR WATER.MONO LAKE COMMITTEE COMMUNICATIONS PROVIDE VALUABLE EDUCATIONAL INFORMATION TO THE PUBLIC. THE QUARTERLY MONO LAKE NEWSLETTER CONTAINS DETAILED INFORMATION ABOUT PUBLIC POLICY, NATURAL HISTORY, AND OTHER ITEMS RELEVANT TO MONO LAKE AND IS MAILED TO THE MONO LAKE COMMITTEE'S 16,000 MEMBERS AND GIVEN TO THE PUBLIC FOR FREE. THE MONO LAKE COMMITTEE'S WEBSITE, MONOLAKE.ORG PROVIDES A WIDE RANGE OF CURRENT NEWS AND INFORMATION ABOUT MONO LAKE.

  • SCIENTIFIC RESEARCH: THE MONO LAKE COMMITTEE RUNS THE MONO BASIN FIELD STATION TO SUPPORT SCIENTIFIC RESEARCH IN THE MONO BASIN BY PROVIDING HOUSING AND BASIC RESOURCES NEEDED FOR RESEARCH. THE INFORMATION GATHERED AT THE FIELD STATION IS INSTRUMENTAL IN UNDERSTANDING MONO LAKE AND IN SHAPING THE MONO LAKE COMMITTEE'S POLICIES AND SCIENCE-BASED LAND MANAGEMENT BY AGENCIES. THE MONO LAKE COMMITTEE ALSO RUNS THE VORSTER CENTER FOR MONO BASIN HYDROLOGY, A SCIENCE AND RESEARCH HUB FOR DATA COLLECTION, MODELING, ANALYSIS, FORECASTING, AND REAL-WORLD APPLICATION OF MONO LAKE AND MONO BASIN HYDROLOGY. THE MONO LAKE COMMITTEE ALSO MAINTAINS AN ONLINE LIBRARY FOR SCIENTIFIC RESEARCH, ENVIRONMENTAL STUDIES, AND HISTORICAL DOCUMENTS AT MONOBASINRESEARCH.ORG.

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Sally Gaines

    CHAIRPERSON

    Total calculated
    $0
    Hours/week
    5

  • David Kanner

    TREASURER

    Total calculated
    $0
    Hours/week
    5

  • Tom Soto

    SECRETARY

    Total calculated
    $0
    Hours/week
    5

  • Martha Davis

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Doug Virtue

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Sherryl Taylor

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Vireo Gaines

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Gina Radieve

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Kristine Zeigler

    DIRECTOR

    Total calculated
    $0
    Hours/week
    5

  • Geoffrey McQuilkin

    EXCUTIVE DIRECTOR

    Total calculated
    $154,128
    From this org
    $149,639
    From related orgs
    $0
    Other
    $4,489
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $149,639
    Bonus
    $0
    Other
    $0
    Deferred
    $4,489
    Nontaxable benefits
    $0
    Filer's total
    $154,128

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $5,226,688
    Expenses
    $4,113,833
    Contributions
    $4,569,755
    Grants paid
    $37,910
  • 2023
    Revenue
    $3,695,725
    Expenses
    $3,695,027
    Contributions
    $2,909,510
    Grants paid
    $41,750
  • 2022
    Revenue
    $3,794,468
    Expenses
    $3,290,303
    Contributions
    $3,160,035
    Grants paid
    $31,000

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2024 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2023 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2022 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2021 · 990

    Revenue
    $4,631,166
    Expenses
    $2,802,081
    Assets (EOY)
    $16,255,498

  • 2021 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2020 · 990

    Revenue
    $3,828,615
    Expenses
    $2,506,479
    Assets (EOY)
    $14,020,783

  • 2020 · 990-T

    Revenue
    not reported
    Expenses
    not reported
    Assets (EOY)
    not reported

  • 2019 · 990

    Revenue
    $4,061,180
    Expenses
    $2,354,430
    Assets (EOY)
    $10,775,082

  • 2018 · 990

    Revenue
    $4,833,968
    Expenses
    $2,220,095
    Assets (EOY)
    $8,939,464

  • 2017 · 990

    Revenue
    $2,171,851
    Expenses
    $2,149,361
    Assets (EOY)
    $6,770,075

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

Where these grants went next →

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.