Stormwater Management: Anaheim vs Orange
How do stormwater management rules compare between Anaheim, CA and Orange, CA?
Anaheim and Orange have similar restriction levels.
Anaheim, CA
Orange County
Anaheim participates in the North Orange County stormwater program under the MS4 permit regulated by the Santa Ana Regional Water Quality Control Board. New development must incorporate stormwater BMPs.
View full Anaheim rules →Orange, CA
Orange County
The City of Orange is mandated by federal NPDES permit R8-2009-0030 to implement stormwater runoff management programs. All development projects must comply with the city's Local Implementation Plan under the Orange County Drainage Area Management Plan.
View full Orange rules →Key Facts Comparison
| Fact | Anaheim | Orange |
|---|---|---|
| Permit | North OC MS4 | - |
| WQMP | Required for new dev | - |
| Board | Santa Ana RWQCB | - |
| Watershed | Santa Ana River | - |
| NPDES Permit | - | R8-2009-0030 |
| WQMP Required | - | Most new development |
| LID Encouraged | - | Bioswales, permeable paving |
| Report Violations | - | (714) 744-5525 |
Highlighted rows indicate differences between cities.
Anaheim FAQ
What stormwater permits does Anaheim require?
New development must prepare a WQMP with stormwater BMPs. The city operates under the North OC MS4 permit from the Santa Ana Regional Water Quality Control Board.
Can I wash my car and let water run to the storm drain?
No. Only rainwater should enter storm drains. Wash cars on permeable surfaces or at commercial car washes that recycle water.
Orange FAQ
Can I wash my car in the driveway in Orange?
Water from car washing should not flow into storm drains carrying soap and pollutants. Use a commercial car wash or wash on a permeable surface that drains to landscaping.
What should I do about a storm drain spill?
Report spills or illegal discharges to the Public Works Department at (714) 744-5525 or Orange County storm water hotline.
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