Folsom requires erosion and sediment control plans for grading projects. Projects disturbing 1 acre or more need state Construction General Permit coverage and a SWPPP. The rainy season (October 1 – April 30) triggers enhanced BMP requirements.
Any grading or construction in Folsom that disturbs soil must implement Best Management Practices (BMPs) to prevent erosion and sedimentation. Smaller projects follow Folsom's Erosion and Sediment Control standards enforced by Public Works and Building Inspection — typical BMPs include fiber rolls, silt fence, stabilized construction entrances, and covered stockpiles. Projects disturbing 1 acre or more must obtain coverage under the state's Construction General Permit (Water Quality Order 2022-0057-DWQ), file a Notice of Intent with the State Water Resources Control Board, and prepare a Stormwater Pollution Prevention Plan (SWPPP). Enhanced BMPs are required during the October 1 through April 30 rainy season — active grading may require a wet-weather erosion control plan or stop-work during storm events. Hillside sites and parcels draining directly to the American River get heightened scrutiny.
Contact your local code enforcement office for specific penalty information.
Folsom, CA
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Side-by-side rule comparisons with other cities in Sacramento County.
See how other cities in Sacramento County handle erosion control.
See how Folsom's erosion control rules stack up against other locations.
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