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 Caldwell's wastewater treatment plant in Idaho.
- Permit number: ID0021504
- Effective date: Nov. 1, 2016
- Permit expires: Oct. 31, 2021
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NPDES Permit, City of Caldwell, Idaho, #ID0021504 (PDF)(51 pp, 310 K,
NPDES Permit Fact Sheet, City of Caldwell, Idaho, #ID0021504 (PDF)(76 pp, 2 MB,
Technical basis for NPDES permit.
Response to Comments on Draft NPDES Permit for City of Caldwell, Idaho, #ID0021504 (PDF)(28 pp, 451 K,
EPA's responses to public comments received on its July 2015 draft permit.