Manteca, CA Environmental Rules: Stormwater Management (2026)
Key Facts
- Governing chapter
- MMC Chapter 13.28
- Enforcing agency
- Public Works Director
- Penalty
- Misdemeanor, Penal Code § 19
- Applies to
- New development, redevelopment permits
Summary
Manteca bans discharging pollutants into its storm drain system or any watercourse, and requires new development and redevelopment projects to control runoff volume and pollutant load under city-issued permits.
No person shall discharge, permit to be discharged or cause to be discharged any materials including but not limited to pollutants or waters containing any pollutants that cause or contribute to a violation of applicable water quality standards into either any part of the MS4 or any part of a water course.
A. It is prohibited to throw, deposit, place, leave, maintain, keep or permit to be thrown, deposited, placed, left, maintained or kept any refuse, rubbish, garbage or any other discarded or abandoned objects, articles or accumulations in or upon any street, alley, sidewalk, storm drain, inlet, catch basin conduit or drainage structure, business place or upon any public or private plot of land in the city, so that the same might be or become a pollutant. No person shall throw or deposit litter in any fountain, pond, lake, stream or other body of water within the city. This subsection shall not apply to refuse, rubbish or garbage deposited in containers, bags or other appropriate receptacles which are placed in designated locations for regular solid waste pick up and disposal.
B. It is prohibited to intentionally dispose of leaves, dirt or other landscape debris into the MS4.
C.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4829770; v11 updated 2026-04-21).
Full Breakdown
Manteca Municipal Code Chapter 13.28 makes it unlawful to discharge, permit, or cause the discharge of any pollutant-containing material into the municipal separate storm sewer system (MS4) or any watercourse where it violates water quality standards. The public works director enforces the chapter, and new development and redevelopment projects must incorporate city-approved best management practices controlling runoff volume, rate, and pollutant load as a condition of land use entitlements and building permits. Illicit connections to the MS4 are separately prohibited under § 13.28.040.
Violations & Fines
Violating any provision of Chapter 13.28 is a misdemeanor punishable under California Penal Code § 19; the director can also order abatement, impose fines, and place a lien on the property for cleanup costs.
Frequently Asked Questions
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Sources & Official References
Other rules in Manteca
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Stormwater Management in Nearby Cities
How other cities in San Joaquin County handle stormwater management.