NPDES Permit for City of Boise Geothermal Project in Idaho

Transfer of permitting authority to Idaho. As of July 1, 2019, 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 are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the City of Boise Geothermal Project discharging to the Boise River in Idaho.

Permit number: ID0025488
Effective date: November 16, 1999
Permit expires: November 16, 2004 (administratively continued)

Related permits:

NPDES Permit, Boise Geothermal Project, #ID0025488 (pdf) (October 14, 1999)
Final permit.
NPDES Permit Fact Sheet, Boise Geothermal Project, #ID0025488 (pdf) (June 1999)
Provides technical basis for NPDES permit.
Response to Comments, Boise Geothermal Project, #ID0025488 (pdf) (1999)
EPA's responses to public comments on June 2011 draft permit.