An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Colorado NPDES Permits

In Colorado, EPA issues all NPDES permits on tribal lands (see table below). All other permits are issued by the Colorado Dept. of Public Health & Environment.

For state-issued permits, visit  Colorado Dept. of Public Health & Environment Water Quality PermitsExit


Final and draft permits

The table below contains all final (i.e. active) and draft (i.e. proposed) NPDES permits issued by EPA within Colorado. It includes permits for individual facilities, general permits, and stormwater permits. Click on the facility/permit name to view the permit and supporting documents.

Colorado NPDES Permits
Location Facility or Permit Name Permit Number Permit Type Permit Status Effective Date
Various Wastewater Lagoons in Indian Country COG587### General Final 01/01/2016
Southern Ute Indian Reservation (La Plata County) Crossfire-Bonds Gravel Pit CO0035024 Individual Final 09/01/2015
Lazear (Delta County) Hotchkiss National Fish Hatchery CO0000086 Individual Final 05/01/2017
Leadville (Lake County) Leadville National Fish Hatchery CO0000582 Individual Draft  
Leadville (Lake County) Leadville National Fish Hatchery CO0000582 Individual Final 11/01/2008
El Paso County Fort Carson Sanitary Wastewater Treatment Facility CO0021181 Individual Final 12/01/2011
Leadville (Lake County) Leadville Mine Drainage Tunnel CO0021717 Individual Final 01/01/2017
Southern Ute Indian Reservation (La Plata County) Southern Ute Indian Tribe CO0022853 Individual Draft  
Mesa Verde (Montezuma County) Mesa Verde National Park Wastewater Treatment Facility CO0034398 Individual Final 03/01/2013
Mesa Verde (Montezuma County) Mesa Verde National Park Water Treatment Plant CO0034622 Individual Final 11/01/2014
Southern Ute Indian Reservation (La Plata County) Four Corners Materials Bayfield Pit CO0034665 Individual Final  
El Paso County Cheyenne Mountain Air Force Station CO0034762 Individual Final 04/01/2017
El Paso County Fort Carson Landfill No. 5 CO0034771 Individual Final 09/01/2011
Weld and Logan Counties F.E. Warren Air Force Base Missile Launch Facilities CO0034789 Individual Final  
Mesa County Colorado National Monument CO0034975 Individual Final 10/01/2016
Aurora Eastern Colorado Health Care System (VA Hospital) CO0034991 Individual Final 08/07/2012
Archuleta County Arboles Sand & Stone Lob Lolly Industrial Site CO0048194 Individual Final  
El Paso County Fort Carson Municipal Separate Storm Sewer System (MS4) COR042001 Stormwater Final 01/01/2016
Lakewood (Jefferson County) Denver Federal Center Municipal Separate Storm Sewer System (MS4) COR042004 Stormwater Final 12/01/2011
El Paso County Peterson Air Force Base Municipal Separate Storm Sewer System (MS4) COR042006 Stormwater Final 01/01/2016
El Paso County Air Force Academy Municipal Separate Storm Sewer System (MS4) COR042007 Stormwater Final 01/01/2016
Denver Denver VA Hospital Municipal Separate Storm Sewer System (MS4) COR042008 Stormwater Final 01/01/2016
Southern Ute Indian Reservation (La Plata County) Bondad Landfill COR050005 Individual Final 06/01/2012
Aurora Buckley Air Force Base Municipal Separate Storm Sewer System (MS4) COR042003 Stormwater Final 10/01/2013
Boulder U.S. Dept. of Commerce, National Institute of Standards and Technology (NIST) Municipal Separate Storm Sewer System (MS4) COR042002 Stormwater Final 09/01/2009
El Paso County U.S. Air Force Academy Wastewater Treatment Facility CO0020974 Individual Final 02/01/2015
Lakewood (Jefferson County) Denver Federal Center Building 52A CO0034860 Individual Final 01/01/2015
Lakewood (Jefferson County) Federal Corrections Institution, Englewood Municipal Separate Storm Sewer System (MS4) COR042005 Stormwater Final 10/01/2014
Lakewood (Jefferson County) U.S. General Services Administration, Downing Reservoir Groundwater Treatment Facility CO0035033 Individual Draft  
Adams County U.S. Dept. of Interior, Fish and Wildlife Service Rocky Mountain Arsenal Recycled Water Pipeline CO0035009 Individual Final 05/01/2015