NPDES Stormwater Permit for North Idaho Highway Districts
Transfer of permitting authority to Idaho. As of July 1, 2021, EPA has transferred authority to administer and enforce this permit to the Idaho Department of Environmental Quality. For more information, visit Idaho Pollutant Discharge Elimination System (IPDES) Program.
Below is EPA's proposed National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) permit and supporting documents for the East Side Highway District, Lakes Highway District, and Post Falls Highway District in Kootenai County, Idaho.
- Permit number: IDS028207
- Effective date: October 1, 2020
- Permit expires: September 30, 2025
This permit consolidated prior MS4 permits issued individually to Lakes Highway District MS4 and Post Falls Highway District MS4.