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  2. Permitting Under the Clean Air Act

Title V Operating Permit Public Petition Deadlines in Region 8

This table lists Proposed Title V Operating Permits submitted to Region 8 and undergoing EPA's 45-day Review, including the start and end dates for EPA's 45-day review period. It also lists the start and end dates for the public's 60-day petition period
StateCompany and Facility NamePermit NumberType of Permit ActionEPA 45-Day Review
Period Start Date
EPA 45-Day Review
Period End Date

60-Day Public Petition Period Start Date
60-Day Public Petition Period End DateReview Type
ColoradoPublic Service Company of Colorado - Camanche Station96OPPB133Renewal2025/7/292025/9/112025/9/122025/11/10Sequential
ColoradoEnterprise Gas Processing - Jackrabbit Compressor Station10OPGA355Renewal2025/7/242025/9/82025/9/92025/11/7
Concurrent
ColoradoMontrose Forest Products, LLC - Montrose Forest Products24OPMO616Initial2025/7/172025/9/22025/9/32025/11/3Concurrent
ColoradoFront Range Landfill, Inc. - Front Range Landfill97OPWE188Renewal2025/7/152025/8/282025/8/292025/10/27Concurrent
ColoradoDCP - Troudt Compressor Station21OPWE435Initial2025/7/152025/8/282025/8/292025/10/27Concurrent
ColoradoWilliams Gilcrest LLC - Wiedeman Compressor Station23OPWE504Initial2025/7/82025/8/212025/8/222025/10/20Concurrent
ColoradoColorado Power Partners - Brush Power Plant96OPMR171Minor Modification2025/7/12025/8/142025/8/152025/10/14Concurrent
ColoradoAllied Waste Systems of Colorado - Jeffco Foothills Landfill99OPJE221Renewal and Minor Modification2025/06/172025/07/312025/08/012025/09/29Concurrent
ColoradoPublic Service Company of Colorado - Haden Station96OPRO132Renewal2025/06/122025/07/282025/07/292025/09/26Concurrent
ColoradoBoulder Scientific Company - Mead Facility23OPWE577Initial2025/06/062025/07/212025/07/222025/09/19Sequential
ColoradoPhillips 66 Company - Phillips 66 Pipeline LLC - Denver Terminal96OPAD160Minor Modification2025/06/062025/07/212025/07/222025/09/19Sequential
ColoradoWilliams Gilcrest, LLC - Kersey Compressor Station21OPWE462Initial2025/06/062025/077/212025/07/222025/09/19Sequential
ColoradoTri-State Generation and Transmission Association, Inc - Limon Generating Station02OPLI253Renewal2025/05/292025/07/142025/07/152025/09/12Concurrent
ColoradoColorado Interstate Gas Company, LLC - Totem Natural Gas Transmission and Storage Facility21OPAD443Significant Modification2025/05/292025/07/142025/07/152025/09/12Concurrent
ColoradoEnterprise Gas Processing, LLC - Meeker Gas Plant10OPRB346Initial2025/05/292025/07/142025/07/152025/09/12Concurrent
ColoradoUniversity of Colorado at Boulder - Campus (West District Energy Plant, Williams Village, East District Energy Plant)95OPBO059Renewal2025/05/282025/07/112025/07/122025/09/09Concurrent
ColoradoACPI Wood Products Company, LLC - Cabinetworks Group07OPAD296 Renewal2025/5/282025/7/112025/7/122025/9/9Concurrent
ColoradoLas Animas Municipal Power and Light - Las Animas Municipal Power Plant01OPBE233Initial2025/05/232025/07/072025/07/082025/09/05Sequential
ColoradoDCP Operating Company, LP - Crossroads Facility21OPWE447Initial2025/05/222025/07/072025/07/082025/09/05Sequential
ColoradoHolly Energy Partners - Operating, L.P. - Denver Products Terminal96OPAD172Minor Modification2025/05/202025/07/032025/07/042025/09/02Sequential
ColoradoColorado Department of Human Services Southern District, Facilities Management - Colorado Mental Health Institute at Pueblo95OPPB068Renewal2025/05/202025/07/032025/07/042025/09/02Concurrent
ColoradoRed Rock Gathering Company, LLC - Holmes Mesa Compressor Station10OPGA352Renewal2025/05/202025/07/032025/07/042025/09/02Concurrent
ColoradoRed Rock Gathering Company, LLC - Rifle Clough Compressor Station96OPGA137Minor Modification2025/05/132025/06/262025/06/272025/08/25Concurrent
ColoradoPublic Service Company of Colorado - Yosemite Air Blend Plant02OPWE247Renewal2025/04/292025/06/122025/06/132028/08/13Concurrent
ColoradoCaerus Energy Services, LLC - StoryGulch Compressor Station13OPGA380Renewal2025/04/242025/06/092025/06/102025/08/08Sequential
ColoradoUtah GasOP Ltd. dba Utah Gas Corp - Dragon Trail Gas95OPRB044Renewal2025/04/162025/05/302025/05/312025/08/04Sequential
ColoradoDCP Operating Company, LP - Spindle Natural Gas Processing Plant95OPWE039Renewal2025/04/092025/05/232025/05/242025/08/04Concurrent
MontanaPar Montana, LLC - Billings RefineryOP1564-22Renewal2025/06/032025/07/172025/07/182025/09/15Sequential
MontanaYellowstone Energy, LP - Yellowstone Power PlantOP2650-04Renewal2025/5/152025/6/302025/7/12025/8/29Sequential
North DakotaHess North Dakota Pipelines LLC, Hawkeye Gas FacilityAOP- 28417Renewal2025/8/22025/9/152025/9/162025/11/14Sequential
North DakotaMinnkota Power Cooperative, Inc. - Milton R Young StationAOP28368v6.0Renewal2025/07/062028/08/192025/08/202025/10/20Sequential
North DakotaCargill, Inc. - Oilseeds ProcessingAOP28376v6.0Renewal2025/05/032025/06/162025/06/172028/08/15Sequential
South Dakota3M - Aberdeen TV Revision28.3301-09Minor Modification2025/7/252025/9/82025/9/92025/11/7Sequential
South DakotaNorthWestern Energy - Aberdeen Generating Station28.0801-03-02CMinor Modification2025/05/212025/07/072025/07/082028/09/05Concurrent
Southern UteRed Cedar - Diamondback Compressor StationV-SUIT-0018-2024.00Renewal2025/6/42025/7/182025/7/192025/9/16Sequential
Southern UteRed Cedar - Homestead Compressor StationV-SUIT-0037-2024.00Renewal2025/6/42025/7/182025/7/192025/9/16Sequential
Southern UteRed Cedar - Trail Canyon Compressor StationV-SUIT-0048-2024.00Renewal2025/6/42025/7/182025/7/192025/9/16Sequential
Southern UteRed Cedar - Worford Ridge Compressor StationV-SUIT-0046-2024.00Renewal2025/6/42025/7/182025/7/192025/9/16Sequential
Southern UteSIMCOE, LLC - Florida River CDPV-SUIT-0022-2024.00Renewal2025/5/272025/7/102025/7/112025/9/8Sequential
Southern UteSIMCOE, LLC - Tiffany 2V-SUIT-0060-2024.00Initial2025/5/272025/7/102025/7/112025/9/8Sequential
Southern UteSIMCOE, LLC - Tiffany 5V-SUIT-0059-2024.00Initial2025/5/272025/7/102025/7/112025/9/8Sequential
UtahPacifiCorp - Hunter Power Plant1500101004Renewal2025/7/222025/9/42025/9/52025/11/3Sequential
UtahKennecott Utah Copper, LLC - Kennecott Smelter & Refinery 23500030005Renewal2025/7/162025/8/292025/8/302025/10/28Sequential
UtahInterstate Brick Company - Brick and Tile Manufacturing Plant Minor ModDAQE-IN104230019-25Minor Modification2025/7/142025/8/272025/8/282025/10/20Sequential
UtahCUR Henry Mountains Uranium - Tony M Mine1700021003Significant Modification2025/7/42025/8/182025/8/192025/10/17Sequential
UtahUS Army - Dugway Proving Ground4500003005Admin Amend2025/6/132025/7/282025/7/292025/9/26Sequential
UtahWeir Minerals, Inc.3500210006Renewal2025/06/072025/07/212025/07/222025/09/19Sequential
UtahKinder Morgan Altamont, LLC - Altamont South Compressor Station1300041005Reopening (Response to EPA Order)2025/06/052025/07/212025/07/222025/09/19Sequential
UtahMidwestern Fabricators, Inc - Fiberglass Manufacturing Plant3500354006Renewal2025/5/222025/7/72025/7/82025/9/5Sequential
UtahHill Air Force Base1100007004Renewal; Administrative Amendment2025/05/032025/06/162025/06/172025/08/15Sequential
UtahMaterion Natural Resources - Delta Mill2700001005 Renewal2025/04/222025/06/052025/06/062025/08/04Sequential
UtahCentral Valley Water Reclamation Facility - Wastewater Treatment PlantAN104140015-21Renewal; Administrative Amendment2025/04/172025/06/022025/06/032025/08/01Sequential

Permitting Under the Clean Air Act

  • Clean Air Act Permitting Around the Nation
    • New England Region (R1)
    • New York, New Jersey, Puerto Rico and U.S. Virgin Islands (R2)
    • Mid-Atlantic Region (R3)
    • Southeastern Region (R4)
    • Great Lakes Region (R5)
    • South Central Region (R6)
    • Midwest Region (R7)
    • Mountains and Plains Region (R8)
    • Pacific Southwest Region (R9)
      • Air Permit Delegation and PSD SIP Approval
      • Electronic Permit System and Dashboards
      • Pending and Issued Permits
      • About NSR Permitting
      • About OCS Permitting
      • About PSD Permitting
      • About Title V Permitting
      • Permitting in Arizona
      • Permitting in California
      • Permitting in Hawai'i and Pacific Islands
      • Permitting in Nevada
    • Pacific Northwest Region (R10)
  • CAA Permitting Tools & ​Related Resources
  • Outer Continental Shelf Air Permits
Contact Us About Permitting Under the Clean Air Act
Contact Us About Permitting Under the Clean Air Act to ask a question, provide feedback, or report a problem.
Last updated on July 28, 2025
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