Industrial Stormwater Pollution Prevention Plan (SWPPP)

New 2012 IGP Permit Issued on April 16, 2012.  All existing permitees must submit a new NOI by July 1, 2012 to be compliant.



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.


These 10 categories of activity are:


  • Category One (i): Facilities subject to federal stormwater effluent discharge standards in 40 CFR Parts 405-471
  • Category Two (ii): Heavy manufacturing (for example, paper mills, chemical plants, pretroleum refineries, and steel mills and foundries)
  • Category Three (iii): Coal and mineral mining and oil and gas exploration and processing
  • Category Four (iv): Hazardous waste treatment, storage, or disposal facilities
  • Category Five (v): Landfills, land application sites, and open dumps with industrial wastes
  • Category Six (vi): Metal scrapyards, salvage yards, automobile junkyards, and battery reclaimers
  • Category Seven (vii): Steam electric power generating plants
  • Category Eight (viii): Transportation facilities that have vehicle maintenance, equipment cleaning, or airport deicing operations
  • Category Nine (ix): Treatment works treating domestic sewage with a design flow of 1 million gallons a day or more
  • Category Eleven (xi): Light manufacturing (For example, food processing, printing and publishing, electronic and other electrical equipment manufacturing, and public warehousing and storage).

If your company participates in any of these areas, you will be required to create/update your SWPPP to the 2012 permit.



2012 Permit Changes


EPD  adopted the new GAR050000 permit on April 16, 2012.  It will become effective on June 1st 2012.  By July 1, 2012  all industrial permits need to be updated.  Innovate Engineering has received advanced training on the new permit procedures and is ready to assist these sites.  Please contact us (  if you would like a representative of Innovate Engineering Solutions, LLC to contact you about how these changes may effect your industrial sites.