Environmental Rules in Folsom, CA (2026)
5 verified environmental rules for Folsom, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Folsom bans any nonstormwater discharge into its storm drain system or receiving waters under Chapter 8.70, backing its Clean Water Act permit with misdemeanor penalties up to $1,000 and 6 months in jail plus daily administrative sanctions.
Folsom Stormwater Discharge Rules
Significant RestrictionsFolsom, CA, Municipal Code §§ 8.70.110, 8.70.410
8.70.110 Prohibited discharge. Except as provided in Section 8.70.120, it shall be unlawful for any person to make or cause to be made any nonstormwater discharge into any of the following: A. The storm drain system. B. Receiving waters. C. A private storm drain system, where the design of the system will not prevent the nonstormwater discharge from reaching the city storm drain system or recei...
Erosion Control
Folsom requires cut and fill slopes on a grading site to be protected against erosion as soon as practicable, with permanent revegetation completed within twelve months of reaching final grade. Municipal Code Section 14.29.330 sets the erosion-control content required in a grading plan and specifically encourages native plant material to cut irrigation demand.
Folsom Grading Erosion Control Standards
Some RestrictionsFolsom, CA, Municipal Code § 14.29.330
14.29.330 Erosion control. A. The faces of cut and fill slopes shall be prepared and maintained to control against erosion. The protection for the slopes shall be installed as soon as practicable and prior to calling for final approval. ... 1. Permanent revegetation or landscaping, if required, is to be commenced on the construction site as soon as practical and in no case exceeding twelv...
Flood Zones
Any construction inside Folsom's mapped special flood hazard area needs a development permit before work begins, and new or substantially improved houses must have their lowest floor at least two feet above the base flood elevation. Chapter 14.32 bars most new fill and construction in a designated floodway and sets a 20-foot no-encroachment setback where no floodway has been mapped.
Folsom Floodplain Development Permit Rules
Significant RestrictionsFolsom, CA, Municipal Code § 14.32.040(A), § 14.32.050(A)(3)(a), (F)(3)
A. Establishment of Development Permit. A development permit shall be obtained before construction or development begins within any area of special flood hazard established in subsection B of Section 14.32.030. ... a. Residential construction, new or substantial improvement, shall have the lowest floor, including basement, elevated at least 2 feet above the base flood elevation as determi...
Defensible Space
Folsom's fire code amendment requires a 30-foot firebreak around structures adjoining grass- or brush-covered land, clearing flammable vegetation and dead wood, with an extra hazard clearance out to 100 feet under Section 8.36.080 (Fire Code Sec. 321.2).
Folsom Defensible Space Around Structures
Significant RestrictionsFolsom, CA, Municipal Code Sec. 8.36.080 (Fire Code Sec. 321.2, Defensible space around structures)
321.2 Defensible space around structures. Any person owning, leasing, controlling, operating, or maintaining any building or structure upon or adjoining any grass- or brush-covered land or land covered with flammable growth, and any person owning, leasing, or controlling any land adjacent to such structures, shall at all times: 1. Maintain around and adjacent to such building, structure, or api...
Flood Elevation Requirements
In Folsom's mapped special flood hazard areas, new homes and substantial improvements must sit with their lowest floor, including any basement, at least 2 feet above the base flood elevation. A licensed engineer or surveyor must certify the elevation before the chief building official signs off.
Folsom Base Flood Elevation Freeboard
Some RestrictionsFolsom, CA, Municipal Code Sec. 14.32.050(A)(3)(a)
Residential construction, new or substantial improvement, shall have the lowest floor, including basement, elevated at least 2 feet above the base flood elevation as determined by this community. Upon completion of the structure, the elevation of the lowest floor including basement shall be certified by a California registered professional engineer or land surveyor and verified by the chief bui...
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