Environmental Rules in San Ramon, CA (2026)
2 verified environmental rules for San Ramon, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
San Ramon prohibits illicit discharges to its storm drain system under the Municipal Regional Stormwater Permit (MRP) and local ordinance. Illicit discharges include any non-stormwater entering the MS4 — wastewater, wash water, chemicals, paint, oil, sediment, and pool water. Violations carry fines up to $10,000 per day under California Water Code Section 13385 and local penalties. Reporting is encouraged through the Contra Costa Clean Water Program or San Ramon Public Services.
Environmental: Illicit Discharge
Heavy RestrictionsFlood Zones
San Ramon has FEMA-mapped flood zones primarily along San Ramon Creek, Alamo Creek, and their tributaries. Properties in Special Flood Hazard Areas (SFHA, Zones A and AE) are subject to FEMA flood insurance requirements for federally-backed mortgages and to elevation requirements under the city's floodplain management ordinance. The city participates in the National Flood Insurance Program (NFIP) and enforces the California Model Floodplain Management Ordinance. New construction in SFHAs must have lowest floor elevated to or above the Base Flood Elevation (BFE).
Environmental: Flood Zones
Heavy RestrictionsLooking for Contra Costa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement San Ramon city rules.
Environmental Rules in Contra Costa County →