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 Boise's West Boise wastewater treatment facility discharging to the Boise River and Dixie Slough in Idaho.
- Permit number: ID0023981
- Effective date: August 1, 2012
- Modified: September 1, 2012; June 27, 2013; April 30, 2016; September 1, 2016
- Permit expires: July 31, 2017 (administratively extended)
- City of Boise Lander Street Wastewater Treatment Plant
- City of Boise Geothermal Project
- Boise /Garden City Area MS4 Stormwater Permit
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NPDES Permit, West Boise WWTP, #ID0023981 (PDF)(57 pp, 455 K,
August 24, 2016)
Final permit (includes modifications from September 2012; June 2013; April 2016; and September 2016).
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NPDES Permit Fact Sheet (2016 Mod), West Boise WWTP, #ID0023981 (PDF)(74 pp, 4 MB,
July 2016)
Provides technical basis for 2016 permit modification.
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NPDES Permit Fact Sheet (2013 Mod), West Boise WWTP, #ID0023981 (PDF)(54 pp, 2 MB,
October 2012)
Provides technical basis for 2013 permit modification (Dixie Slough).
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NPDES Permit Fact Sheet (2012 Mod), City of Boise Lander Street (#ID0020443) and West Boise (#ID0023981) (PDF)(4 pp, 96 K,
July 2012)
Provides technical basis for 2012 modification of NPDES permits for Boise Lander Street and West Boise WWTPs.
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NPDES Permit Fact Sheet, West Boise WWTP, #ID0023981 (PDF)(149 pp, 2 MB,
October 2011)
Provides technical basis for 2011 draft permit.
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Response to Comments (2013 Mod), West Boise WWTP, #ID0023981 (PDF)(33 pp, 287 K,
May 28, 2013)
EPA's responses to public comments on the October 2012 draft permit modification.
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Response to Comments, City of Boise Lander Street (#ID0020443) and West Boise (#ID0023981) (PDF)(35 pp, 354 K,
March 2012)
EPA's responses to public comments on the October 2011 draft permits for Boise Lander Street and West Boise WWTPs.
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Idaho Water Quality Certification (2016 Mod), West Boise WWTP, #ID0023981 (PDF)(4 pp, 231 K,
August 19, 2016)
Idaho's Clean Water Act Section 401 Certification for 2016 permit modification.