Environmental Rules in Watsonville, CA (2026)
4 verified environmental rules for Watsonville, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
In the City of Watsonville, California, any non-storm water discharge to the City storm water sewer system is prohibited unless it complies with an NPDES permit. Section 6-3.525 lists exceptions, including properly managed landscape irrigation, water line flushing and individual residential car washing. Illicit connections are unlawful, retroactively.
Watsonville CA Storm Water Discharge Rules
Significant RestrictionsWatsonville Municipal Code § 6-3.525
Any non-storm water discharges to the City storm water sewer system are prohibited, unless in compliance with an NPDES permit. Exceptions to this prohibition are set forth in subsections (a) and (b) below: (a) Discharges Not Polluting the Waters of the State. NPDES permitted non-storm water discharges and discharges which are not sources of pollutants to waters of the State (as described in 40 ...
Erosion Control
In the City of Watsonville, California, every project must file a site-specific erosion and sediment control plan with its grading or building permit application, no matter how small. The plan has to meet the City's erosion control standards, and the Director can require specific best management practices. Stop work orders back the rule up.
Watsonville Erosion and Sediment Control Plan Rule
Some RestrictionsWatsonville Municipal Code § 6-3.532
All projects, regardless of size, shall develop and submit a site-specific erosion and sediment control plan when applying for a grading or building permit. The plan must meet the requirements of the City of Watsonville erosion control standards. The director may require implementation of specific BMPs as part of the erosion and sediment control plan.
Flood Zones
In the City of Watsonville, California, in Santa Cruz County, no one can begin construction or other development inside a mapped area of special flood hazard without first obtaining a floodplain development permit. The City Manager or a designee serves as Floodplain Administrator, and a violation of Chapter 9-2 is a misdemeanor.
Watsonville Floodplain Development Permit Rules
Significant RestrictionsWatsonville Municipal Code § 9-2.400
A floodplain development permit shall be obtained before any construction or other development begins within any area of special flood hazard established in WMC Section 9-2.301. Application for a floodplain development permit shall be made on forms furnished by the Floodplain Administrator and shall include all information called out on the form and requested by the City.
Flood Elevation Requirements
In the City of Watsonville, California, a new or substantially improved home in a special flood hazard area must have its lowest floor, basement included, one foot above the base flood elevation. AO zones add a two-foot-above-adjacent-grade alternative where no base flood elevation is specified, and an engineer or surveyor certifies the finished elevation.
Watsonville Base Flood Elevation Requirements for New Buildings
Some RestrictionsWatsonville Municipal Code § 9-2.500(c)(1)
(1) Residential construction, new or substantial improvement, shall have the lowest floor of the entire structure, including basement, (i) In an AO zone, one foot (1') above the base flood elevation, or elevated at least two feet (2') above the highest adjacent grade if no base flood elevation is specified. (ii) In an A zone, one foot (1') above the base flood elevation; said base floo...
Looking for Santa Cruz County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Watsonville city rules.
Environmental Rules in Santa Cruz County →