Stormwater Management: Clovis vs Sanger
How do stormwater management rules compare between Clovis, CA and Sanger, CA?
Clovis and Sanger have similar restriction levels.
Clovis, CA
Fresno County
Clovis is a Phase II MS4 permittee under the State Water Board NPDES program. Only rainwater allowed in storm drains—no washwater, pool water, paint, or chemicals. New/redevelopment projects must manage post-construction runoff per the city's Stormwater Management Plan.
View full Clovis rules →Sanger, CA
Fresno County
Sanger regulates stormwater under its NPDES Phase II MS4 permit. Construction disturbing one acre or more requires a SWPPP with erosion and sediment control BMPs.
View full Sanger rules →Key Facts Comparison
| Fact | Clovis | Sanger |
|---|---|---|
| Permit | Phase II MS4 NPDES | - |
| LID Trigger | 5,000+ sq ft impervious | - |
| Outlet | Dry Creek → San Joaquin | - |
| Prohibited | Non-stormwater discharge | - |
| Fine | Up to $10,000/day | - |
| Permit Type | - | NPDES Phase II MS4 |
| SWPPP Trigger | - | 1 acre or more disturbance |
| Post-Construction | - | 5,000 sq ft impervious surface |
| Regional Board | - | Central Valley RWQCB |
| Illicit Discharge | - | Prohibited |
Highlighted rows indicate differences between cities.
Clovis FAQ
Can I drain my pool into the street?
No. Pool water (chlorinated) is an illicit discharge. Drain to landscaping (after dechlorinating) or to the sanitary sewer through a permitted connection.
Is washing my car in the driveway legal?
Yes, residential car washing is allowed, though the city encourages using commercial washes that recycle water. Commercial/fleet washing must capture wash water.
Sanger FAQ
When is a SWPPP required in Sanger?
A Stormwater Pollution Prevention Plan is required for construction projects that disturb one acre or more of land. The project owner must file a Notice of Intent with the State Water Resources Control Board and implement erosion and sediment control BMPs.
Can I wash my car and let water run into the storm drain?
Wash water flowing into the storm drain system is considered an illicit discharge. Use a commercial car wash or wash on a pervious surface like a lawn where water can infiltrate the ground rather than reaching the storm drain.
What is an illicit discharge?
Any non-stormwater discharge to the storm drain system, including wash water, pool drainage, paint waste, and landscape runoff with fertilizers or pesticides. Only stormwater is permitted in the storm drain system.
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