Cathedral City, CA Environmental Rules: Erosion Control (2026)
Key Facts
- State permit trigger
- Five or more acres disturbed, or part of a common plan
- Wet-season cover
- Plastic or other covering between October 1st and April 1st
- Stockpiles
- Covered until the soil is used or removed
- Sediment barrier
- Installed where the city planner finds it necessary
- Equipment washing
- Not allowed on rights-of-way or adjacent private roadways
- Penalty
- Infraction or misdemeanor, each day a separate offense
Summary
In Cathedral City, construction sites must reduce sediment runoff to the maximum extent practicable, install a temporary sediment barrier where the city planner requires one, and cover unprotected areas with plastic between October 1st and April 1st. Soil stockpiles must be covered until used or removed.
F. Subject to all of the provisions of this chapter, the following additional requirements shall apply to persons conducting construction in the city for which a certificate of occupancy is required, and the owners of such property. ... 1. Runoff containing sediment, construction waste and other pollutants from construction sites and construction vehicles and equipment parking areas which is likely to enter the storm drain system shall be reduced to the maximum extent practicable. 2. Where determined necessary by the city planner or his or her designee, a temporary sediment barrier shall be installed. 3. Between October 1st and April 1st, of each year the owner of property or any person performing improvements thereon shall use a plastic or other covering, along with additional runoff control devices if necessary, to intercept and safely convey the runoff on unprotected areas to control runoff of pollutants. 4. Excavated soil shall be located on the site in a manner that minimizes the amount of soil transported into the public right-of-way onto adjoining properties. Soil stockpiles shall be covered with plastic or other covering until the soil is either used or removed.
Full Breakdown
Section 15.10.060 is the construction rule in Cathedral City's stormwater chapter. It makes any person performing construction in the city comply with Chapter 15.10, applicable county regulations for erosion and sediment control, and all city grading and drainage regulations.
Permit tier. Construction that disturbs five or more acres, or less than five acres that is part of a common plan of development for five or more acres, cannot start or continue until the operator shows the city's department of engineering a general permit for storm water discharges associated with construction activity from the state water resources control board (subsection B). Routine maintenance to maintain original line and grade and emergency construction to protect public health and safety are excluded. The site must keep a copy of the notice of intent, a waste discharge identification number and the stormwater pollution prevention plan and monitoring program plan, and provide them to the city on request (subsections C and D). The city planner can require permits to be displayed at the worksite (subsection A).
Plan review. Before issuing a building or grading permit for new development or redevelopment, the city planner evaluates the project's potential to generate illicit discharges during construction and can attach conditions based on the California Storm Water Best Management Practice Handbooks (subsection E).
On-site controls. Subsection F applies from demolition or the start of construction until the certificate of occupancy. Beyond the four items quoted above, washing industrial or construction equipment or vehicles is not allowed on city rights-of-way or private roadways adjacent to the site, and drainage controls such as detention ponds, sediment ponds, infiltration pits, dikes, filter berms, ditches, downdrains, chutes or flumes are used as needed. As a permit condition, the city can also set reasonable limits on vegetation clearing, including how long soil can stay bare.
Violations & Fines
Violating Chapter 15.10 is an infraction or misdemeanor, and each day or portion of a day is a separate offense (§ 15.10.120). An authorized enforcement officer can issue a cease and desist order or a notice to clean, and unpaid costs invoiced to the owner become a lien after sixty days (§§ 15.10.160 and 15.10.140). Orders can be appealed in writing to the city planner within ten days (§ 15.10.190).
Frequently Asked Questions
When does a Cathedral City construction project need a state stormwater permit?
Do I have to cover bare soil on my building site?
What documents must stay on a regulated construction site?
Sources & Official References
Other rules in Cathedral City
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