NPDES / Stormwater

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.  

Industrial General Permit 

TMDL Information 

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 Home - San Bernardino County Stormwater Program (, which has links to educational material for residents, businesses, students, and our permit partners.

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 NPDES Inspection Program FAQ – Public Works (

Contact Us 


Permit Counter Hours

Monday - Thursday:

8:00 am - 5:00 pm

Friday: 8:00 am - 4:00 pm

Phone: (909) 384-5019


Submitting NPDES information to:

Email: [email protected]

Contact Information:

Ken Watson, Manager - QISP, SM-QSD, QSP

(909) 384-5140 Ext. 5154


Submitting (Complete)
Applications to:

[email protected]

Please refer to the application for Submittal Requirements, each application varies.


Office Address:

201 North E Street, Suite 200


Mailing Address:

290 North "D" Street

San Bernardino, CA 92401