2025 Clean Water Act Section 319 Nonpoint Source Pollution Grant

State Water Resources Control Board · State of California

At a glance

2025 Clean Water Act Section 319 Nonpoint Source Pollution Grant is a closed California state grant opportunity from the State Water Resources Control Board (State of California). The application deadline was June 2, 2025. Individual awards are listed as $50K – $1M, with $4.5M in total estimated funding. Applicant types listed as eligible include nonprofit, public agency and tribal government. It is listed on the California Grants Portal. Cost sharing or matching is required.

Summary assembled from the official notice's fields. The official notice governs.

Key facts

May 29, 2025Posted
Jun 2, 2025Application deadline

Opened: May 29, 2025
Close date: Jun 2, 2025
Award floor: $50,000
Award ceiling: $1,000,000
Est. total funding: $4,500,000
Expected awards: Not specified
Matching funds: Required
Funding instrument: Grant

Program details (as published on the California Grants Portal)

Type: Grant
Funding source: Federal — Clean Water Act section 319; grant program contingent on receiving a grant from United States Environmental Protection Agency in summer 2026.
Matching funds: 25% — the 25% required matching funds may be waived for economically disadvantaged communities if approved during the application process.
Funding method: Reimbursement(s) — Each invoice package submitted to the Waterboards for reimbursement should be within 45 days of the end of the reporting period. The approval process will begin once all documents have been received within the requirements described in their unique subgrant agreement.
Estimated number of awards: Dependant on number of submissions received, application process, etc.
Award period: 10/2025 - 10/2030
Expected award announcement: July 2025
Letter of intent: Not required
Geography: Projects must address a program preference, which is a specific watershed or waterbody and pollutant combination that is identified by the Regional Water Quality Control Board. Program preferences are listed in the grant guidelines.
Latest change note: Closing date of the grant has been updated to June 2025.

Who can apply

Applicant categories as listed on the California Grants Portal. GrantsJunction maps them to detailed applicant types for search and matching.

Nonprofit
Public Agency
Tribal Government

Additional information on eligibility (from the listing)

Most projects must quantify pollutant load reductions to waters of the sate. Projects must be part of a larger watershed plan to improve overall watershed health, unless it is a planning project.

Can your organization apply?

A quick check against the listed applicant types — other requirements in the notice still apply.

Based on the published notice. Review the official notice for complete eligibility requirements.

What it funds

Purpose and description as published on the California Grants Portal.

Purpose

The Clean Water Act Section 319 Grant Program awards grants to reduce and mitigate the effects of nonpoint source pollution - such as sediment, pesticides, and nutrients - to waters of the state.

Description

The program primarily funds implementation projects, but occasionally offers grants for planning projects. Examples of projects include livestock fencing to reduce sediment and nutrient discharges, agricultural best management practices to reduce pesticide and nutrient discharges, dredging contaminated sediment from pesticide-imparied waters, habitat restoration such as installation of large woody debris and riparian revegetation, and rural road inventories and repairs to reduce sedimentation and erosion. Most awards go to projects that improve impaired waters, but a small amount of funding goes to projects that protect high-quality waters, or that address a nonpoint source pollution problem created by a wildfire.

Program page on the agency site ↗

Past applications & awards

Historical data · not a prediction

Reported by the agency for this listing

Fiscal year 2024–259 applications · 2 awards

Counts as published on the California Grants Portal. Award counts can read zero until decisions are announced.

Awards published: 2
Total awarded: $1,265,415
Median award: $632,708 calculated
Smallest – largest: $465,000 – $800,415

Recipients by type: Public Agency (1), Nonprofit (1)

Areas served: San Mateo County (1), Santa Cruz County (1)

Largest awards to organizations

Peninsula Open Space TrustScott Creek Post-Fire Recovery Sediment Prevention and Forest Management Phase 2$800,415 · FY 2024–25
San Mateo CountyLittle Butano Creek at Cloverdale Road Sediment Reduction$465,000 · FY 2024–25

Source: California Grants Portal grant award data. Awards to individuals are counted but not named. Past awards show who was funded; they do not predict future decisions.

Program contact (as published)

Bryce Leuschen
bryce.leuschen@waterboards.ca.gov
1-916-319-9078

Quick answers

Who is eligible to apply for “2025 Clean Water Act Section 319 Nonpoint Source Pollution Grant”?

The official listing names these applicant types as eligible: Nonprofit, Public Agency and Tribal Government. It adds: “Most projects must quantify pollutant load reductions to waters of the sate. Projects must be part of a larger watershed plan to improve overall watershed health, unless it is a planning project.” Additional restrictions may apply; review the full guidelines.

How much funding is available through “2025 Clean Water Act Section 319 Nonpoint Source Pollution Grant”?

Per the notice, individual awards are listed as $50k – $1m and total estimated program funding is $4,500,000.

How do I apply for “2025 Clean Water Act Section 319 Nonpoint Source Pollution Grant”?

Applications go directly to State Water Resources Control Board, not through GrantsJunction. Read the program guidelines on the agency's site first; state programs set their own forms and registration requirements.

Other open California state opportunities, matched on agency, categories and wording.

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