Transfer of permitting authority to Idaho. As of July 1, 2018, 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.Exit
Below are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the City of Ketchum wastewater treatment plant discharging to Big Wood River in Idaho.
- Permit number: ID0020281
- Effective date: August 1, 2012
- Permit expires: July 31, 2017 (administratively continued)
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NPDES Permit, City of Ketchum, Idaho #ID0020281 (PDF)(28 pp, 178 K,
June 22, 2012)
NPDES Permit Fact Sheet, City of Ketchum, Idaho #ID0020281 (PDF)(47 pp, 949 K,
Technical basis for NPDES permit.
Response to Comments on Draft NPDES Permit for City of Ketchum, Idaho #ID0020281 (PDF)(13 pp, 210 K,
EPA's responses to public comments received on its draft permit.