The NPDES section administers the National Pollutant Discharge Elimination System (NPDES) program for the County of San Bernardino and the San Bernardino County Flood Control District.This stormwater management program is mandated by the Federal Clean Water Act and is implemented by the State Water Resources Control Board, and has the goal of preventing pollutants from entering our lakes, streams, rivers, and oceans through stormwater runoff.

San Bernardino County Stormwater Mapping Tool (WAP Geodatabase)

WQMP Templates and Forms

Santa Ana River Watershed Stormwater Permit

The District, the County, and the 16 incorporated cities in the Santa Ana River watershed are Co-permittees under a stormwater discharge permit, issued by the State of California through the Santa Ana Regional Water Quality Control Board. The San Bernardino County Flood Control District has been designated “Principal Permittee” under the MS4 Permit, and administers and coordinates many of the permit requirements on behalf of all the Permittees.

The Permittees are implementing and complying with the requirements of the latest NPDES MS4 permit (4th iteration) that was issued in January 2010.

For more information, see the Stormwater Web Site, which has links to educational material for residents, businesses, students, and our permit partners.

Mojave River Stormwater Permit

The County, the Town of Apple Valley, and the Cities of Victorville and Hesperia have been issued a MS4 Phase II Stormwater Permit by the State Water Resources Control Board, covering the urbanized portion of the Mojave River Watershed.

These agencies have collectively prepared the Mojave River Watershed Group Stormwater Management Plan, which describes control measures for protecting area water quality.

For more information, see the Mojave River Web Site and Frequently Asked Questions about Phase II Municipal Stormwater Permits.

NPDES Inspection Program & Billing

Under the NPDES MS4 permit, the co-permittees are required to implement a business facility inspection program to ensure that pollutants are not flowing from private property into the stormwater system.  For more information visit our County Stormwater Inspection Program FAQ page.

For Information Contact

Arlen Chun, P.E.

Division Chief  – Environmental Management

Department of Public Works