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The following are current Stormwater Construction Activities:

     Stormwater Quality Control Criteria Plan

     Stormwater Pollution Prevention Plan (SWPPP) (under construction)

Stormwater Quality Control Criteria Plan

 In order to comply with the National Pollutant Discharge Elimination System (NPDES) permit, the County of San Joaquin has developed a Planning and Development Program to reduce pollutants in runoff from new development and redevelopment to the maximum extent practical.   The program also requires the County to specify control for post-construction runoff from new developments and redeveloped area. The Stormwater Quality Control Criteria Plan linked here provides development standards on these controls, including general site controls, source controls and treatment controls for the following:

• Home divisions with 10 or more housing units;
• Commercial developments with impervious areas greater than 100,000 sq. ft.;
• Automotive repair shops with impervious areas greater than 5,000 sq. ft.;
• Restaurants;
• Parking lots greater than 5,000 sq. ft. or with 25 or more parking spaces;
• Streets and roads with one acre or more of impervious area;
• Retail gas outlets with 5,000 or more sq. ft. of impervious area.

Click here for the Stormwater Quality Control Criteria Plan 2003

Click here for the Stormwater Permit  

Click here for the Guidance Manual for Compliance

Stormwater Pollution Prevention Plan (SWPPP)

The County of San Joaquin requires owners and developers to submit and implement a program to control the pollution of storm water discharges effectively during construction projects. Furthermore, federal regulations for controlling pollutants in storm water runoff discharges were issued by the US Environmental Protection Agency (EPA) in 1990. These regulations require that a National Pollutant Discharge Elimination System (NPDES) permit be obtained for storm water discharges associated with significant construction activities. In California, the EPA has delegated its authority to issue NPDES permits to the State Water Resources Control Board (SWRCB) and the nine Regional Water Quality Control Boards (RWQCB).

The General Permit requires owners of land where construction activity disturbs 1 acre or more to develop a Stormwater Pollution Prevention Plan (SWPPP).

Coverage is obtained by filing with the SWRCB a Notice of Intent (NOI) to comply with the General Permit. Failure to obtain coverage or to comply with conditions of the General Permit may result in civil penalties of up to $25,000 per day of violation under the Clean Water Act and civil and criminal penalties under the California Water Code. On projects where the COS is the owner, the contractor selected by the City shall file the NOI, then develop and submit a SWPPP to the County Stormwater Management Engineer for review.

Click here for Model Storm Water Pollution Prevention Plan
for Construction Activities (PDF)

For more information on industrial activities, contact the Stormwater Management Program at Jpadilla@sjgov.org, or (209) 468-2907.