page_title: Industrial stormwater
section_title: Regulation in the United States
hierarchical_section_title: Industrial stormwater / Regulation in the United States
caption_attribution_description: English: A U.S. Army C-37B aircraft transporting Army Chief of Staff Gen. Raymond T. Odierno, gets de-iced before it departs Joint Base Elmendorf-Richardson, Alaska, Jan. 20, 2012.
context_page_description: Industrial stormwater is runoff from precipitation that lands on industrial sites. This runoff is often polluted by materials that are handled or stored on the sites, and the facilities are subject to regulations to control the discharges.
context_section_description: In the United States, facilities that discharge industrial stormwater to surface waters must obtain a permit under the National Pollutant Discharge Elimination System (NPDES), pursuant to the Clean Water Act. Stormwater permit regulations issued by the United States Environmental Protection Agency (EPA) govern the permit process. EPA published its "Phase I" stormwater rule, which covers industrial dischargers, in 1990.
  Most stormwater permits in the U.S. are issued by the agencies in 47 states that have been given authority by EPA. EPA regional offices issue the stormwater permits in the remaining parts of the country.
caption: Deicing of aircraft. All U.S. airports are required to obtain stormwater permits
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