California · Nonprofit
CALIFORNIA STORMWATER QUALITY ASSOCIATION
CALIFORNIA STORMWATER QUALITY ASSOCIATION (California) receives grants from 2 organizations whose IRS filings report $75,027 to it, the largest being Bill & Marian Cook Foundation ($75,000). 1 of them have funded it in more than one year.
- Revenue FY2025
- $3.4M
- Funders on record
- 2
- Grants received
- $75k
- Net assets
- $2.7M
What California Stormwater Quality Association does
Mission
On behalf of california stormwater permittees, casqa advances sustainable stormwater management protective of california water resources. To advance sustainable stormwater management protective of california resources, casqa will:lead: define and advocate for policies, regulations, legislation, and solutions that are based in the latest science and implement casqa's vision for sustainable stormwater managementengage: create opportunities to engage with our members and other organizations to achieve common goals by sharing knowledge, ideas, and best practiceseducate: produce resources, publications, and events that inform and train stormwater professionals and educate the publicsupport implementation: publish tools and guidance to support implementation of stormwater programsincrease organizational capabilities: operate as a high performance organization with the capabilities to achieve the strategic plan
As stated on its FY2025 Form 990.
Programs
Educate: produce resources, publications, and events that inform and train stormwater professionals and educate the public.
$1,470,573 spent$1,941,031 earned by the program65% of program spendingLead: define and advocate for policies, regulations, legislation, and solutions that are based in the latest science and implement casqa's vision for sustainable stormwater management.
$515,631 spent$76,575 earned by the program23% of program spendingSupport implementation: publish tools and guidance to support implementation of stormwater programs.
$230,058 spent$202,850 earned by the program10% of program spendingOther program services, not described on the e-filed return.
$58,345 spent$1,155,613 earned by the program3% of program spending
The 4 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $2,274,607.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $2.5M to $3.4M (+33%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2017 7%. Grants only. Government contracts and fees sit inside program revenue.
0% of CALIFORNIA STORMWATER QUALITY ASSOCIATION’s revenue is contributions — more earned-revenue than three-quarters of its peers (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Karen Cowan
Executive director
Board chair
Rob Carson
Chair
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2020 and FY2021 filings.
Who funds it, year by year
2021 → 2023: the base held at 1 funder, grant income fell $75k → $22.
1 of 2 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of CALIFORNIA STORMWATER QUALITY ASSOCIATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
CALIFORNIA STORMWATER QUALITY ASSOCIATION leans on a few funders — its largest provides 100% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2021 100% · 2022 100% · 2023 100% — broadly stable.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
CALIFORNIA STORMWATER QUALITY ASSOCIATION draws 100% of its grant income from funders outside California, across 1 state in all.
Funder states come from each funder’s own filing. $27 arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
CALIFORNIA STORMWATER QUALITY ASSOCIATION holds deeper cash reserves than three-quarters of the 1,209 environment nonprofits its size.
this organization peer median middle 50% of peers· 1,209 environment nonprofits $1M–$10M, FY2025
Organizations like CALIFORNIA STORMWATER QUALITY ASSOCIATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
87% of spending goes to programs.
Governance
Public support
81%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for CALIFORNIA STORMWATER QUALITY ASSOCIATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds CALIFORNIA STORMWATER QUALITY ASSOCIATION?
- CALIFORNIA STORMWATER QUALITY ASSOCIATION (California) receives grants from 2 organizations whose IRS filings report $75,027 to it, the largest being Bill & Marian Cook Foundation ($75,000). 1 of them have funded it in more than one year.
- How many funders does CALIFORNIA STORMWATER QUALITY ASSOCIATION have?
- IRS filings report 2 organizations giving $75,027 in grants to CALIFORNIA STORMWATER QUALITY ASSOCIATION, 1 of which have funded it in more than one year.
- Who is the largest funder of CALIFORNIA STORMWATER QUALITY ASSOCIATION?
- Bill & Marian Cook Foundation is the largest funder on record, with $75,000 in grants. The full list of funders is on this page.
- How can an organization like CALIFORNIA STORMWATER QUALITY ASSOCIATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds California Stormwater Quality Association →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 2 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing