California grants › Environment & Water
Proposition 4 – Water Recycling
Source: California Grants Portal, ID 184101. Listing last updated by the grantor Jul 7, 2026. Rebuilt here Oct 30, 2026.
Who can apply
NonprofitPublic AgencyTribal Government
Local public agencies, 501(c)(3) nonprofit organizations qualified to do business in California, Public Utilities, Federally and non-federally recognized Native American tribes on the Native American Heritage Commission’s list, and Mutual water companies.
Where: All community types are eligible for funding. This includes small and large communities, non-disadvantaged, disadvantaged, and severely disadvantaged communities.
Purpose
The purpose of the funding is to provide technical and financial assistance to local agencies for the construction of water recycling projects that promote the beneficial use of treated municipal wastewater in order to augment fresh water supplies in California.
Description
Eligible Applicants: Local public agencies, 501(c)(3) nonprofit organizations qualified to do business in California, Public Utilities, Federally and non-federally recognized Native American tribes on the Native American Heritage Commission’s list, and Mutual water companies. Eligible Uses: Eligible projects include recycled water treatment; recycled water storage, distribution, and pumping; groundwater recharge; indirect potable reuse; surface water augmentation; and large scale recycled water projects. Ineligible Uses: Operation and maintenance costs. Eligible Costs: Construction Grant Funding - Construction costs only Construction Grant Funding - Large Scale Recycled Water Projects - Planning, Design, and Construction. Eligible Communities: All community types are eligible for funding. This includes small and large communities, non-disadvantaged, disadvantaged, and severely disadvantaged communities. For more information, please review the Water Recycling Funding Program (WRFP) Guidelines: https://www.waterboards.ca.gov/water_issues/programs/grants_loans/docs/wrfp_guidelines.pdf
Important dates
- Opened
- Jul 6, 2025
- Application deadline
- Jun 30, 2030
- Expected award announcement
- June 30, 2030
- Period of performance
- Expire June 30, 2033
Funding details
- Total estimated available
- $150,000,000.00
- Estimated amount per award
- Between $1.00 and $15,000,000.00
- Expected number of awards
- Dependant on number of submissions received, application process, etc.
- Letter of intent required
- No
- Matching funds
- 50%
- Funding source
- State
- Funding source notes
- Proposition 4 Water Recycling
- Funding method
- Reimbursement(s)
- Funding method notes
- Grant is calculated at 35% of eligible construction costs up to $15 million per project.
How to apply
Read the full guidelines on the grantor's site, then apply there. Nothing is submitted through this site.
Submission: url: https://faast.waterboards.ca.gov/
- Grant guidelines & application ↗
- State Water Resources Control Board ↗
- Original listing on grants.ca.gov ↗
Questions about this grant: email: [email protected]; tel: 1-916-324-8404;
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