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🌍 Environmental Rules/Stormwater Management

Stormwater Management: Moorpark vs Oxnard

How do stormwater management rules compare between Moorpark, CA and Oxnard, CA?

Moorpark has fewer restrictions than Oxnard.

Moorpark, CA

Ventura County

Some Restrictions

Moorpark's stormwater program under MMC Chapter 15.24 (Stormwater Quality Management) prohibits discharge of pollutants into the storm drain system. Non-stormwater discharges are prohibited. New development must incorporate Best Management Practices (BMPs) for stormwater retention and treatment.

View full Moorpark rules β†’

Oxnard, CA

Ventura County

Heavy Restrictions

Oxnard enforces stormwater pollution prevention under its NPDES Municipal Separate Storm Sewer System (MS4) permit. Construction sites, commercial properties, and industrial operations must prevent pollutant discharge to storm drains flowing to the Pacific Ocean.

View full Oxnard rules β†’

Key Facts Comparison

FactMoorparkOxnard
Non-Stormwater DischargeProhibited-
New DevelopmentBMP plan required-
Construction SitesErosion control plan required-
Watercourse MaintenanceProperty owner responsibility-
Code SectionMMC Chapter 15.24 (Stormwater)-
Permit-Ventura County MS4 NPDES
SWPPP Required-For sites 1+ acre disturbed
LID Required-New development must include
Penalty-Up to $10,000 per day

Highlighted rows indicate differences between cities.

Moorpark FAQ

Can I wash my car in the driveway in Moorpark?

Car wash water containing soap and chemicals should not be allowed to flow into storm drains. Use a commercial car wash or wash on permeable surfaces where water can be absorbed rather than draining to the street.

What stormwater requirements apply to new construction in Moorpark?

New development must prepare a Stormwater Quality Management Plan with Best Management Practices for onsite retention and treatment. Construction sites need erosion and sediment control plans.

Who is responsible for drainage on my Moorpark property?

Property owners must maintain drainage facilities and keep watercourses free of trash and debris per the stormwater ordinance. Blocked drainage that causes flooding may violate the code.

Oxnard FAQ

What are Oxnard's stormwater rules?

Oxnard prohibits pollutant discharge to storm drains under its NPDES MS4 permit. Construction sites over one acre need SWPPPs. New developments must include Low Impact Development measures.

Where does Oxnard stormwater go?

Oxnard's storm drains flow directly to the Pacific Ocean through channels including the Oxnard Industrial Drain and Santa Clara River estuary. No treatment occurs, making pollution prevention critical.

Do I need a stormwater plan for my construction project?

If your project disturbs one acre or more, you need a SWPPP and General Construction Permit coverage. Smaller projects may still need Best Management Practices per city requirements.

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