State grantCalifornia

Proposition 4 – Water Recycling

Offered by State Water Resources Control Board

Source: California Grants Portal. View the official listing. Listed from the California Grants Portal (grants.ca.gov). Grantgrove is not affiliated with or endorsed by the State of California.

Who can apply
Local public agencies, California 501(c)(3) nonprofits, public utilities, tribes, and mutual water companies.
How much
Up to $15,000,000
By when
Due Jun 30, 2030Opens July 6, 2025
Go to the official listing

Checked Oct 26, 2026

About this grant

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.

Eligibility details

  • 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.
  • Geography: All community types are eligible for funding. This includes small and large communities, non-disadvantaged, disadvantaged, and severely disadvantaged communities.
  • Matching funds: 50%
Nonprofit (501c3)Nonprofit (Other)GovernmentTribal

Topics

Environment, Conservation & Energy

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