Hesperia, CA Environmental Rules: Stormwater Management (2026)
Key Facts
- Core prohibition
- No pollutant discharge to MS4
- New development
- BMPs required per CASQA handbooks
- Regulated projects
- Approved WQMP required before permits
- Penalty
- Misdemeanor plus abatement cost recovery
Summary
Hesperia bans discharging pollutants, illicit non-stormwater or hazardous materials into its storm drain system, and requires new development and construction sites to install BMPs to keep runoff clean.
Except as exempted in the MS4 Permit, no person shall discharge, facilitate, cause, permit or allow to be discharged to the MS4, receiving water, and/or groundwater, either directly or indirectly, any illicit discharge, including but not limited to, pollutants, hazardous materials and other unauthorized non-stormwater discharges.(b)It is prohibited to intentionally dispose of leaves, dirt, other landscape debris, or trash into the MS4, receiving waters, or groundwater. (Ord. No. 2016-07, § 2(Exh. A), 9-20-16; Ord. No. 2020-03, 2(Exh. A), 4-7-20)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 24 Update 2).
Full Breakdown
Chapter 8.30 of the Hesperia Municipal Code implements the city's NPDES municipal separate storm sewer system (MS4) permit. Section 8.30.100 bars any person from discharging pollutants, hazardous materials or other illicit non-stormwater to the MS4, receiving waters or groundwater, and specifically prohibits dumping leaves, dirt, landscape debris or trash into storm drains. New, redevelopment, industrial and commercial sites must install and maintain best management practices consistent with California Stormwater Quality Association handbooks, and regulated projects need an approved Water Quality Management Plan before permits issue. Violations are a misdemeanor, and the city can order cleanup within as little as 72 hours.
Violations & Fines
Discharging pollutants or illicit non-stormwater into the MS4 is a misdemeanor; the city can issue a notice of correction giving as little as 72 hours to abate, and recover its cleanup costs from the discharger.
Frequently Asked Questions
Can I wash pollutants into a Hesperia storm drain?
Do new developments need a stormwater plan in Hesperia?
Sources & Official References
Other rules in Hesperia
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Stormwater Management in Nearby Cities
How other cities in San Bernardino County handle stormwater management.