Public Notices

Cost Impacts of Proposed Stormwater Permit

The Santa Ana Water Board is preparing to adopt a new Regional Stormwater Permit that would regulate all cities and counties in the Santa Ana watershed—including Riverside, San Bernardino, and Orange Counties—under a single, uniform set of requirements. This represents a major shift from past, county‑specific permits.

Under the proposed rules, the County of Riverside will need over $15.4 billion over the next 20 years to build stormwater capture and treatment projects.  Countywide, the estimated cost equates to $497 per resident per year for 20 years. See below for the Cost Impact Report. 

For more information, contact Ryan Kearns at rkearns@rivco.org.