NPDES Permit for U.S. General Services Administration Downing Reservoir Groundwater Treatment Facility in Colorado

Under National Pollutant Discharge Elimination System permit number CO-0035033, the U.S. General Services Administration is authorized to discharge from its groundwater treatment facility located in the Denver Federal Center in Jefferson County, Colorado, to McIntyre Gulch entering Lakewood Gulch, tributary to the South Platte River.

• CO0035033 U.S. General Services Administration Downing Reservoir Groundwater Treatment Facility NPDES Permit (pdf) (285.7 KB, September 1, 2018)
• CO0035033 U.S. General Services Administration Downing Reservoir Groundwater Treatment Facility Statement of Basis (pdf) (2.01 MB, September 1, 2018)