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  2. NPDES Permits Around the Nation

Colorado NPDES Permits

In Colorado, EPA issues all NPDES permits for federally-owned facilities and on tribal lands (see table below). All other permits are issued by the Colorado Department of Public Health & Environment.

For state-issued permits, visit Colorado Department of Public Health & Environment Water Quality Permits

Related pages:
  • About Region 8's NPDES Permit Program
  • View Public Notices about Colorado NPDES Permits
  • EPA's Suncor Energy USA CEI Inspections

Click on the facility/permit name to view the permit and supporting documents.

NPDES Permits issued by EPA in Colorado
Location Facility or Permit Name Permit Number Permit Status Effective Date Expiration Date
Various General Permit for Wastewater Discharges Associated with Drinking Water Production in Indian Country CODW#### Final 2019-07-31 2024-06-30
Various General Permit for Wastewater Lagoons in Indian Country COG587### Final 2022-04-01 2027-03-31
Southern Ute Indian Reservation (La Plata County) Crossfire-Bonds Gravel Pit CO0035024 Final 2022-04-01 2027-03-31
Delta County Hotchkiss National Fish Hatchery CO0000086 Final 2023-01-01 2027-12-31
Lake County Leadville National Fish Hatchery CO0000582 Final 2022-06-01 2027-05-31
El Paso County Fort Carson Sanitary Wastewater Treatment Facility CO0021181 Final 2011-12-01 2016-09-30
Lake County Leadville Mine Drainage Tunnel CO0021717 Final 2017-01-01 2021-12-31
Southern Ute Indian Reservation (La Plata County) Southern Ute Indian Tribe Wastewater Treatment Plant CO0022853 Final 2025-01-01 2029-12-31
Montezuma County Mesa Verde National Park Wastewater Treatment Facilities CO0034398 Final 2019-09-01 2024-06-30
Montezuma County Mesa Verde National Park Water Treatment Plant CO0034622 Final 2021-01-01 2025-12-31
Southern Ute Indian Reservation (La Plata County) Four Corners Materials Bayfield Pit CO0034665 Final 2020-04-01 2024-06-30
El Paso County Cheyenne Mountain Space Force Station CO0034762 Final 2024-10-01 2029-09-30
El Paso County Fort Carson Landfill No. 5 CO0034771 Final 2023-04-01 2028-03-31
Weld and Logan Counties F.E. Warren Air Force Base Missile Launch Facilities CO0034789 Final 2022-04-01 2027-03-31
Mesa County Colorado National Monument CO0034975 Final 2022-04-01 2027-03-31
El Paso County Fort Carson Army Base Municipal Separate Storm Sewer System (MS4) (Stormwater) COR042001 Final 2025-01-01 2029-12-31
Jefferson County Denver Federal Center Municipal Separate Storm Sewer System (MS4) (Stormwater) COR042004 Final 2022-09-01 2027-08-31
El Paso County Peterson Space Force Base Municipal Separate Storm Sewer System (MS4)(Stormwater) COR042006 Final 2025-01-01 2029-12-31
El Paso County Air Force Academy Municipal Separate Storm Sewer System (MS4)(Stormwater) COR042007 Final 2025-01-01 2029-12-31
Arapahoe County Rocky Mountain Regional VA Medical Center Municipal Separate Storm Sewer System (MS4) (Stormwater) COR042008 Final 2019-10-01 2024-09-30
Southern Ute Indian Reservation (La Plata County) Transit Waste, LLC, Bondad Landfill COR050005 Final 2021-10-01 2026-09-30
Arapahoe County Buckley Space Force Base Municipal Separate Storm Sewer System (MS4)(Stormwater) COR042003 Final 2023-11-01 2028-10-31
Boulder County U.S. Dept. of Commerce, Boulder Laboratories Municipal Separate Storm Sewer System (MS4) (Stormwater) COR042002 Final 2024-01-01 2028-12-31
El Paso County U.S. Air Force Academy Wastewater Treatment Facility CO0020974 Final 2023-01-01 2027-12-31
Jefferson County Building 52A Groundwater Treatment Facility, Denver Federal Center (Federal Highway Administration) CO0034860 Final/Proposed Reissuance 2013-11-01 2018-09-30
Jefferson County Federal Corrections Institution, Englewood Municipal Separate Storm Sewer System (MS4) (Stormwater) COR042005 Final 2014-10-01 2019-09-30
Jefferson County Downing Reservoir Groundwater Treatment System, Denver Federal Center (General Services Administration) CO0035033 Final/Proposed Reissuance 2018-09-01 2023-08-31
Adams County U.S. Fish and Wildlife Service Rocky Mountain Arsenal Recycled Water Pipeline CO0035009 Final 2022-06-01 2027-05-31
Jefferson County U.S. Dept. of Energy National Renewable Energy Laboratory – South Table Mountain (MS4) (Stormwater) COR042009 Final 2018-12-01 2023-11-30
Fremont County U.S. Department of the Interior, Bureau of Land Management, Park Center Well CO0035017 Final/Proposed Reissuance 2018-12-01 2023-11-30
El Paso County Jabil, Incorporated COPF00101 Final 2020-05-26 n/a
Weld County JM Shafer Generating Station COPF00107 Final 2020-10-01 n/a
Weld County Windsor Metal Container COPF00102 Final 2022-03-30 n/a
Weld County Tolmar COPF00106 Final 2024-02-15 n/a
Jefferson County U.S. General Services Administration (GSA), Denver Federal Center Dewatering CO0034878 Final 2021-04-01 2026-03-31
Mesa County Monument Powder Coating COPF00108 Final 2023-06-23 n/a
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Last updated on April 17, 2025
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