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Garden Grove, CA Environmental Rules: Stormwater Management (2026)

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

Key Facts

Bans
Illicit connections and prohibited discharges
Applies to
Any property discharging to City storm drains
New development must follow
County Drainage Area Management Plan
Notice to correct
Up to 7 days, extendable
Infraction fines
$250 first, $500 second, $1,000 further
Misdemeanor max
$1,000 fine and 6 months jail
Appeal window
30 days to request hearing

Summary

Garden Grove Municipal Code Section 6.40.040 bans illicit connections to the City's stormwater drainage system and any 'prohibited discharge' into it, implementing the City's National Pollutant Discharge Elimination System permit under Chapter 6.40. New development and significant reconstruction projects must also follow the County's Drainage Area Management Plan before the City issues a grading, building, or plumbing permit.

No person shall: A. Construct, maintain, operate, and/or utilize any illicit connection; B. Cause, allow, or facilitate any prohibited discharge; C. Act, cause, permit, or suffer any agent, employee or independent contractor, to construct, maintain, operate or utilize any illicit connection, or cause, allow, or facilitate any prohibited discharge.

Full Breakdown

40 (Stormwater Quality) implements Garden Grove's obligations as a co-permittee, along with Orange County and the Orange County Flood Control District, under the Santa Ana and San Diego Regional Water Quality Control Boards' NPDES stormwater permits. 040 bars three things: building or using an illicit connection to the stormwater drainage system, causing or allowing a 'prohibited discharge' into it, and directing an employee or contractor to do either. 050; the City recovers its plan-review costs from the applicant. 060, but must first get consent or an administrative or criminal warrant. 070. Recipients can appeal to a hearing officer within 30 days, with a hearing set within 45 business days. 080.

Violations & Fines

The City can charge a violation as an infraction, punishable by a $250 fine for a first offense, $500 for a second, and up to $1,000 for each further violation within a year, or as a misdemeanor carrying up to a $1,000 fine and six months in jail, under Section 6.40.070(C). Each day of noncompliance is a separate violation, and the City can also seek civil penalties, abatement costs, and injunctions.

Frequently Asked Questions

What counts as a prohibited discharge into Garden Grove's storm drains?
Section 6.40.040 bans any 'prohibited discharge,' a term the chapter defines broadly, exempting only a narrow list like potable water line flushing, irrigation runoff, or firefighting water. Industrial and construction sites subject to state general stormwater permits face additional monitoring duties under the chapter's findings.
Do I need a City permit before doing a construction project that affects drainage?
If your project needs a grading permit, building permit, nonresidential plumbing permit, or discretionary land use approval, Section 6.40.050 requires you to follow the County's Drainage Area Management Plan and any water-quality conditions the City attaches before that permit is issued.
How much time do I get to fix a stormwater violation before it escalates?
An inspector's notice of noncompliance under Section 6.40.070(A)(1) must give a compliance date of no more than seven days, though the inspector can extend that deadline for good cause. Failing to meet it can lead to a compliance order, cease-and-desist order, or criminal citation.

Sources & Official References

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