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All qualifying cities and counties in California must comply with the requirements of a National Pollutant Discharge Elimination System (NPDES) permit administered by the
State Water Resources Control Board and the nine Regional Boards beneath it. The unincorporated portion of El Dorado County's west slope is covered under a
Phase II NPDES permit, which became effective on July 1, 2013. By July 1, 2015, this state mandated permit requires the County to address storm water runoff from new development and redevelopment projects, both during construction and after construction occurs. Projects subject to the requirements, as outlined below, must submit the appropriate Post Construction Storm Water Plan based on the project type. Discretionary projects with vesting tentative maps that have been deemed complete prior to July 1, 2015 are not subject to the current Phase II NPDES permit Post Construction requirements. Those qualifying discretionary projects must follow Section 4.5 Post Construction Runoff Control requirements of the Storm Water Management Plan (SWMP) for Western El Dorado County. Additionally, applicants should be aware of the Post-Construction Standards provided in Section XIII of the State's Construction General Permit should that permit apply to a project. For additional El Dorado County NPDES information, please view the
El Dorado County Storm Water Homepage.
MS4 Permit Reference
For questions or comments about the Storm Water Management Program or Post Construction Storm Water requirements please click here or contact:
El Dorado County Long Range Planning Division 2850 Fairlane Court, Placerville, CA 95667 (530) 573-7906 /