Mission Viejo vs Santa Ana
How do stormwater management rules compare between Mission Viejo, CA and Santa Ana, CA?
Mission Viejo, CA
Orange County
No data available yet for Mission Viejo.
Santa Ana, CA
Orange County
Santa Ana enforces stormwater management regulations under its Municipal Separate Storm Sewer System (MS4) permit issued by the Santa Ana Regional Water Quality Control Board. The city requires construction sites and new development to implement Best Management Practices to prevent pollutants from entering the storm drain system. Post-construction stormwater controls are mandated for qualifying projects under the Orange County NPDES permit.
View full Santa Ana rules →Key Facts Comparison
| Fact | Mission Viejo | Santa Ana |
|---|---|---|
| Permit Type | - | NPDES MS4 permit |
| Regional Board | - | Santa Ana Regional Water Quality Control Board |
| BMP Required | - | Construction and post-construction BMPs |
| Contact | - | Public Works — (714) 647-5074 |
| County Permit | - | Orange County area-wide MS4 permit |
Highlighted rows indicate differences between cities.
Mission Viejo FAQ
No FAQs available.
Santa Ana FAQ
What stormwater rules apply to construction in Santa Ana?
All construction sites must implement Best Management Practices to prevent sediment and pollutants from entering the storm drain system. Larger projects require a SWPPP under the state Construction General Permit.
Does Santa Ana require post-construction stormwater controls?
Yes. New development and significant redevelopment must incorporate permanent stormwater treatment controls as required by the Orange County MS4 permit.
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