West Sacramento, CA Environmental Rules: Stormwater Management (2026)
Key Facts
- Code
- WSMC §13.10 (Urban Stormwater Quality)
- Permit Tier
- Phase II Small MS4
- Field Office
- Public Works / Stormwater
Summary
WSMC §13.10 (Urban Stormwater Quality Management and Discharge Control) prohibits the commencement, conduct, or continuance of any illicit discharge to the storm drain system, except for non-stormwater discharges authorized by an NPDES permit, waiver, or waste-discharge order.
The commencement, conduct or continuance of any illicit discharge to the storm drain system is prohibited... The prohibition shall not apply to any non-stormwater discharge permitted under an NPDES permit, waiver, or waste discharge order issued to the discharger and administered under the authority of the United States Environmental Protection Agency.
Full Breakdown
Common illicit discharges include car-wash runoff with detergents, pool draining, sediment from construction, paint or solvent rinsing into gutters, and dumping of yard waste into storm drains. Property owners and contractors must implement Best Management Practices (BMPs) for activities that could generate pollutants. The City is part of the Phase II Small MS4 program under the State Water Board's general permit.
Violations & Fines
Administrative penalties for illicit discharge; cost-recovery for cleanup; potential state Water Board enforcement for repeat violations.
Frequently Asked Questions
Can I wash my car in the driveway?
What is BMP?
Sources & Official References
Other rules in West Sacramento
California rules heatmap·Compare West Sacramento to another location·View the California environmental rules overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.