Huntington Park, CA Environmental Rules: Stormwater Management (2026)

Chapter 9 of Title 7 of the Huntington Park Municipal Code governs stormwater management and discharge in the City of Huntington Park, Los Angeles County, California. Section 7-9.02 puts administration in the hands of the Chief Administrative Officer, and § 7-9.03 requires the chapter to be read consistently with the federal Clean Water Act and with existing or future NPDES permits.

Section 7-9.05 is the core prohibition list. Subsection (a) bars anyone from causing or permitting illicit discharges into the City's storm drain system or keeping an illicit connection. Section 7-9.01 defines an illicit discharge as anything other than stormwater runoff, with carve-outs for items such as landscape irrigation, water line flushing, dechlorinated swimming pool discharges and fire fighting activities when properly managed. Subsection (f) prohibits any discharge that would contribute to a violation of NPDES Permit No. CAS614001 and makes the responsible person defend, indemnify and hold harmless the City. The section also prohibits untreated wash water from gas stations and auto repair garages, untreated wastewater from mobile auto washing and mobile carpet cleaning, and commercial or municipal pool filter backwash. Industrial and commercial parking lots with more than 25 parking spaces in areas exposed to stormwater must be swept, or have equally effective measures taken, on a regular basis.

Section 7-9.06 reaches every owner or occupant. Irrigation runoff must be minimized to the maximum extent practicable, washing down paved areas is prohibited unless the City Engineer finds it necessary for health or safety, and gray water from sinks, showers, tubs, washing machines, dishwashers and garbage disposals cannot go to the street or storm drain.

New development and redevelopment carry extra duties under § 7-9.04 and § 7-9.08. The LID plan goes to the City Engineer and/or Building Official, who approve or disapprove it within 14 business days, and no building permit issues until an LID implementation plan is approved. Fees for plan checking and monitoring are set by City Council resolution under § 7-9.10.