The SWRCB adopted a statewide Industrial General Storm (IGP) Water Permit for Industrial Activities.
Industrial facilities obtain permit coverage based on whether or not their Standard Industrial Classification (SIC) code is included in those categories. A general description of the categories are:
- Facilities subject to storm water effluent limitations guidelines, new source performance standards, or toxic pollutant effluent standards (40 CFR Subchapter N);
- Manufacturing facilities;
- Mining/oil and gas facilities;
- Hazardous waste treatment, storage, or disposal facilities;
- Landfills, land application sites, and open dumps that receive industrial waste;
- Recycling facilities such as metal scrap yards, battery reclaimers, salvage yards, automobile yards;
- Steam electric generating facilities;
- Transportation facilities that conduct any type of vehicle maintenance such as fueling, cleaning, repairing, etc.;
- Sewage treatment plants;
- Certain facilities (often referred to as "light industry") where industrial materials, equipment, or activities are exposed to storm water.
All permit holders are required to implement minimum BMPs to prevent the discharge of polluted storm water off site. The site specific plan to implement BMPs is called the SWPPP. Permit holders are required to collect and analyze storm water samples from two (2) QSEs within the first half of each reporting year (July 1 to December 31), and two (2) QSEs within the second half of each reporting year (January 1 to June 30). Samples are analyzed for pH, Total Suspended Solids, and Oil &Grease. The permit lists other parameters that must be tested for based on the SIC code of the facility. Monthly observation thru out the year. Permit holder are require to register with SMARTs (Water Boards Storm Water Multiple Application & Report Tracking System). The monitoring and sampling results are sumitted on SMARTs, which is submitted to SMARTs on July 15 of each year.
