Brentwood, CA Environmental Rules: Stormwater Management (2026)
Key Facts
- Non-stormwater discharge
- prohibited, § 14.20.060(A)
- NPDES permit number
- CAS083313
- Base violation class
- misdemeanor or infraction
- Continuing violation
- each day is a separate offense
- Penalty cap authority
- Gov. Code §§ 36900, 36901
Summary
Brentwood bars any non-stormwater discharge into its storm drain system and any stormwater discharge that violates the city's NPDES permit. Chapter 14.20 backs the ban with inspections, a misdemeanor or infraction charge, and nuisance-abatement authority.
A. The release of non-stormwater discharges to the city stormwater system is prohibited. B. The discharge of stormwater from premises or an activity that causes or contributes to a violation of receiving water limitations in the city's NPDES permit is prohibited. ... Upon conviction of a misdemeanor, a person shall be subject to payment of a fine, or imprisonment, or both, not to exceed the limits set forth in California Government Code Section 36901.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4604307; v5 updated 2025-12-09).
Full Breakdown
060: releasing any non-stormwater discharge into the city's stormwater system, and discharging stormwater that causes or contributes to a violation of the receiving-water limits in the city's NPDES permit (Permit No. CAS083313). A narrow list of exemptions covers things like natural spring flows, residential air conditioning condensate, individual car washing, and pool or spa drainage, but only when they meet the specific conditions in the city's permit. 080 separately bans unauthorized drainage connections and any discharge that leaves floating matter, oil sheen, sediment or aquatic-toxic substances in a watercourse.
090, anyone owning or operating a site that could contribute pollutants, including parking lots, gas stations and construction sites, must implement best management practices to the maximum extent practicable, keep sidewalks and paved lots free of litter and debris, and file a stormwater control plan for qualifying new development. The public works director's enforcement officers can inspect premises, require monitoring and sampling, and demand immediate notification of any spill that could reach the storm drain system.
Violations & Fines
Under Section 14.20.110, violating any provision of Chapter 14.20 is a misdemeanor, though the enforcement officer or city attorney can instead charge it as an infraction. Section 14.20.120 caps misdemeanor penalties at the fine and imprisonment limits set in California Government Code Section 36901 and infraction fines at the limits in Government Code Section 36900. Every day a violation continues is a separate offense under Section 14.20.130, and the city can also pursue civil nuisance abatement and cost recovery.
Frequently Asked Questions
Can I hose pollutants like paint or oil into a Brentwood storm drain?
Is car washing in my Brentwood driveway allowed under the stormwater code?
Who enforces Brentwood's stormwater ordinance?
Sources & Official References
Other rules in Brentwood
California rules heatmap·Compare Brentwood to another location·View the California environmental rules overview
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Stormwater Management in Nearby Cities
How other cities in Contra Costa County handle stormwater management.