Anaheim participates in the North Orange County stormwater program under the MS4 permit regulated by the Santa Ana Regional Water Quality Control Board. New development must incorporate stormwater BMPs.
Anaheim is a co-permittee under the North Orange County MS4 (Municipal Separate Storm Sewer System) permit, a regulatory partnership with the County of Orange and other municipalities overseen by the Santa Ana Regional Water Quality Control Board. New development and significant redevelopment projects must prepare a Water Quality Management Plan (WQMP) incorporating site design, source control, and treatment BMPs. The city follows OC Water Quality Guidelines for stormwater management. Construction sites must implement erosion and sediment control measures. Illicit discharge to the storm drain system is prohibited — only rainwater should enter storm drains. The city conducts public outreach on stormwater pollution prevention and monitors receiving waters in the Santa Ana River watershed.
Illicit discharge to storm drain: fine and cleanup costs. WQMP non-compliance: permit hold. MS4 violations: regional board enforcement up to $10,000/day.
Anaheim, CA
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Anaheim, CA
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Anaheim, CA
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Anaheim, CA
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Anaheim, CA
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Anaheim, CA
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Side-by-side rule comparisons with other cities in Orange County.
See how other cities in Orange County handle stormwater management.
See how Anaheim's stormwater management rules stack up against other locations.
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