California Prop. 84 Stormwater Grant Solicitation Now Open

The State Water Resources Control Board is now accepting Concept Proposal applications for the Proposition 84 Stormwater Grant Program (SWGP) until Thursday, October 17.

The SWGP will award grants to projects that reduce and prevent stormwater contamination of rivers, lakes, and streams. “This grant is an excellent opportunity for agencies to retro-fit existing infrastruture with the most state-of-the-art stormwater applications or begin new model projects for the future of stormwater management,” said Dudek’s Jane Gray.

Approximately $38.4 million is available during this round of funding, with a minimum grant amount of $250,000 and maximum of $3 million per project. A minimum funding match of 20% is required, but the match requirement may be reduced for projects that benefit disadvantaged communities.

Eligible applicants are restricted to “local public agencies.” A local public agency means any city, county, city and county, or district. A joint powers authority (JPA) comprised entirely of local public agencies is an eligible applicant. Eligible projects must:

  • Reduce and/or prevent stormwater contamination of rivers, lakes, and streams;
  • Implement requirements of municipal stormwater permits; and
  • Implement Low Impact Development (LID) strategies and practices that seek to maintain predevelopment hydrology for existing and new development and redevelopment projects.

Eligibility, general program requirements, and the proposal selection process are detailed in the Proposition 84 Stormwater Grant Program Guidelines (Guidelines), which are available at:

For grant assistance contact Jane Gray at or at 805-308-8531.