|Activities that take place at industrial facilities, such as material handling and storage, are often exposed to the weather. As runoff from rain or snowmelt comes into contact with these activities, it can pick up pollutants and transport them to a nearby storm sewer system or directly to a river, lake, or coastal water. To minimize the impact of stormwater discharges from industrial facilities, the NPDES program includes an industrial stormwater permitting component that covers 10 categories of industrial activity that require authorization under an NPDES industrial stormwater permit for stormwater discharges. There are some exclusions, however, in general the 10 categories of industrial activities are as follows: |
All but five states are authorized to implement the Stormwater NPDES permitting program. Therefore, the vast majority of industrial facilities will need to obtain NPDES permit coverage through their state. For industrial facilities located in areas where EPA is the permitting authority, coverage is available under the Multi-Sector General Permit (MSGP). On September 29, 2008, EPA published its final 2008 MSGP.
- Facilities subject to federal stormwater effluent discharge standards in 40 CFR Parts 405-471
- Heavy manufacturing (for example, paper mills, chemical plants, pretroleum refineries, and steel mills and foundries)
- Coal and mineral mining and oil and gas exploration and processing
- Hazardous waste treatment, storage, or disposal facilities
- Landfills, land application sites, and open dumps with industrial wastes
- Metal scrapyards, salvage yards, automobile junkyards, and battery reclaimers
- Steam electric power generating plants
- Transportation facilities that have vehicle maintenance, equipment cleaning, or airport deicing operations
- Treatment works treating domestic sewage with a design flow of 1 million gallons a day or more
- Light manufacturing (For example, food processing, printing and publishing, electronic and other electrical equipment manufacturing, and public warehousing and storage).
To determine your Stormwater requirements please refer to NPDES Homepage and your state environmental agency or Contact us.