The Industrial Stormwater General Permit is a National Pollutant Discharge Elimination System (NPDES) permit that regulates discharges associated with ten broad categories of industrial activities. The State Water Resources Control Board requires businesses conducting activities falling under specific Standard Industrial Classification (SIC) codes to apply for and gain coverage under the Industrial Stormwater General Permit. A business’s responsibility to file for coverage under the Industrial Stormwater General Permit is not limited to the SIC code of its primary business activity. Secondary, tertiary or incidental activities may result in the requirement to obtain coverage.

The County of Sacramento Environmental Management Department (EMD) conducts stormwater compliance inspections at business that have coverage under the Industrial Stormwater General Permit. For more information on the Industrial Stormwater General Permit and the required inspections, please refer to the County of Sacramento EMD Stormwater Compliance Program’s website.​