Pleasanton, CA Environmental Rules: Stormwater Management (2026)
Key Facts
- General rule
- no non-stormwater discharge to MS4
- Permit
- NPDES No. CAS612008
- Administered by
- public works director
- Penalty class
- misdemeanor or infraction, §9.14.180-190
- Continuing violation
- each day = separate offense
- Spill report line
- 925-931-5500 (same-day)
Summary
Pleasanton bans any discharge to its storm drain system that isn't composed entirely of stormwater. § 9.14.080 of the Stormwater Management and Discharge Control Ordinance makes it unlawful to dump, abandon or leave materials where they can wash into the MS4, implementing the city's NPDES Permit No. CAS612008.
A. General Prohibition. Any discharge to the MS4 not composed entirely of stormwater is prohibited, except as set forth in Section 9.14.090. B. The city of Pleasanton has the authority and duty to require any person intending to connect to the MS4 to adhere to this chapter, the MRP, and any amendment, revision, or reissuance thereof. C. It is unlawful to throw, deposit, leave, abandon, maintain or keep materials or wastes on public or private lands in a manner and place where they may result in an illicit discharge.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4955754; v17 updated 2026-06-02).
Full Breakdown
14, adopted by Ord. 090 for permitted NPDES discharges and MRP-exempt or conditionally exempt discharges. Subsection C separately makes it unlawful to throw, deposit, leave, abandon, maintain or keep materials or waste on public or private land in a manner or place where they could cause an illicit discharge. 040, though the Alameda County Flood Control and Water Conservation District or Zone 7 Water Agency can take over enforcement for watercourses they maintain. The ordinance implements the Regional Water Quality Control Board's San Francisco Bay Area Municipal Regional Stormwater NPDES Permit No.
CAS612008 and requires businesses and property owners to follow best management practices, including sidewalk-sweeping rules, spill reporting, and full trash capture devices where BMPs alone don't keep trash out of the MS4.
Violations & Fines
Under § 9.14.180 any violation of Chapter 9.14, or failure to meet its mandatory requirements, is a misdemeanor, though the city may charge it as an infraction instead. § 9.14.190 caps misdemeanor fines and jail time at the limits set in Government Code § 36901 and infraction fines at Government Code § 36900, with a third infraction for the same provision in 12 months chargeable as a misdemeanor. Each day a violation continues counts as a separate offense under § 9.14.200, and violations are separately declared a public nuisance under § 9.14.230.
Frequently Asked Questions
What counts as an illegal stormwater discharge in Pleasanton?
How is a nonhazardous spill into a storm drain reported?
What's the penalty for a stormwater violation?
Sources & Official References
Other rules in Pleasanton
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Stormwater Management in Nearby Cities
How other cities in Alameda County handle stormwater management.