Proposition 4 – Water Recycling

The State Water Resources Control Board is offering grant funding under Proposition 4 to support construction of water‑recycling projects that augment California’s fresh‑water supplies. Eligible entities such as local public agencies, nonprofits, public utilities, tribal governments, and mutual water companies may apply for construction‑grant assistance covering treatment, storage, distribution, groundwater recharge, indirect potable reuse, and large‑scale recycled‑water projects. Funding is reimbursable, up to 35 % of eligible construction costs, with a match requirement of 50 % and a total program budget of $150 million. Applications are due 30 June 2030, with awards announced the same day and a performance period ending 30 June 2033. • Eligible applicants: local agencies, 501(c)(3) nonprofits, public utilities, tribes, mutual water companies. • Eligible uses: recycled‑water treatment, storage, distribution, pumping, groundwater recharge, indirect potable reuse, surface‑water augmentation, large‑scale projects. • Funding: construction‑grant only, reimbursement up to 35 % of costs, max $15 million per project, 50 % match required. • Total program funding: $150 million; number of awards dependent. • Deadline: 30 June 2030 (23:59 UTC); award announcement same day; performance period through 30 June 2033. • Application portal: https://faast.waterboards.ca.gov/