Stormwater Management: Fullerton vs Santa Ana

What can I legally drain into a Fullerton storm drain?

Generally only uncontaminated rainwater, dechlorinated pool water, residential potable-water-line flushing, and certain landscape irrigation. Chapter 12.18 prohibits soapy wash water, pool chemicals, paint, concrete slurry, oil, and most other non-stormwater discharges to the MS4.

Who regulates Fullerton's stormwater program?

Fullerton is a co-permittee under the Santa Ana Regional Water Quality Control Board's North Orange County MS4 NPDES Permit (R8-2009-0030 series). The County of Orange is the principal permittee, and Fullerton enforces locally under FMC Chapter 12.18.

Do I need a stormwater plan for my construction project?

Construction sites disturbing 1 acre or more must enroll in California's statewide Construction General Permit and prepare a SWPPP. Smaller sites must still install BMPs (silt fences, inlet protection, stockpile covers) under FMC 12.18 and city grading-permit conditions.

Can I drain my pool to the gutter in Fullerton?

Only after dechlorination and pH adjustment so chlorine and other pool chemicals are not discharged. Confirm acceptable discharge procedures with Engineering at (714) 738-6845 before draining.

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.