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Santa Maria, CA Environmental Rules: Stormwater Management (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Governing chapter
SMMC Chapter 8-12A
Enforcing official
Director of Utilities
Spill report deadline
5:00 p.m. next business day
Spill contact
805-928-3781 ext. 277
Violation classification
Misdemeanor and public nuisance
Adopted
Ord. 2009-20, effective 10/15/09

Summary

Santa Maria bans any non-storm water discharge to public or private property and requires storm water discharges to conform with the City's Phase II MS4 permit and Central Coast post-construction standards. The Director of Utilities enforces Chapter 8-12A, can order corrective Best Management Practices, and treats violations as a misdemeanor and public nuisance subject to abatement.

Discharges prohibited. No person shall commence or continue, and no responsible party shall permit, any direct or indirect non-storm water discharge to public or private property. Moreover, no person shall commence or continue, and no responsible party shall permit, any discharge of storm water unless the discharge is in conformance with each of the following: (1) This Code; (2) The terms of the State of California Department of Water Resources Phase II Small MS4 General Permit; (3) The terms of Post-Construction Stormwater Management Requirements for Development Projects in the Central Coast Region dated July 12, 2013, as modified by approved Alternative Compliance; (4) The terms of a permit or other approval given by the City of Santa Maria under authority of subsections (i) through (iii), above.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4818069; v9 updated 2026-04-07).

Full Breakdown

06 separately bars throwing or leaving refuse, rubbish, garbage or litter on public or private property, or letting a leaking dumpster or waste bin contribute pollutants to the storm drain system. org or the Utilities Department and post them at the site. New development and redevelopment projects must control the volume, rate and pollutant load of runoff. the next business day, followed by written confirmation within three days. 14 requiring monitoring, elimination of illicit connections, or other corrective steps.

Violations & Fines

Violating Chapter 8-12A is deemed a public nuisance subject to abatement and a misdemeanor under Section 8-12A.15. The Director of Utilities may issue a written Notice of Violation under Section 8-12A.14 ordering monitoring, elimination of illicit connections, or other corrective action, and may seek a court order if a responsible party refuses to allow inspection under Section 8-12A.12. Missing the 5 p.m. next-business-day spill notification deadline is itself a violation.

Frequently Asked Questions

Can I wash my car in my driveway in Santa Maria?
Yes. Section 8-12A.04(b)(13) exempts individual residential car washing from the storm water discharge prohibition. Commercial car washing and organized car wash events are not exempt: event hosts must obtain the City's current Best Management Practices from santamariacleanwater.org or the Utilities Department and post them at the site under Section 8-12A.08(1).
Who do I call if I see something being dumped into a Santa Maria storm drain?
Report it to the Utilities Department in person at 2065 East Main Street or by phone at 805-928-3781, extension 277, or 805-925-2631. Section 8-12A.11 requires anyone responsible for a spill to notify the City by 5:00 p.m. the next business day and confirm in writing within three days.
What happens if a business violates Santa Maria's storm water ordinance?
The Director of Utilities can issue a written Notice of Violation under Section 8-12A.14 ordering corrective action, and the violation is separately deemed a public nuisance subject to abatement and a misdemeanor under Section 8-12A.15, punishable in addition to any nuisance abatement costs assessed against the property.
Does new construction in Santa Maria have to control storm water runoff?
Yes. Section 8-12A.08(b) requires responsible parties for new development and redevelopment projects to implement City-approved Best Management Practices controlling the volume, rate and pollutant load of storm water runoff, and Section 8-12A.04(a) makes Phase II Small MS4 General Permit terms and Central Coast post-construction requirements independently enforceable as City code.

Sources & Official References

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