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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
ColoradoAnheuser-Busch, LLC - Fort Collins Brewery95OPLR064Minor Modification2026/3/262026/5/112026/5/122026/7/10Sequential
ColoradoLeprino Foods Company - Greeley Facility20OPWE410Significant Modification2026/3/242026/5/72026/5/82026/7/6Concurrent
ColoradoSuncor - Commerce City Refinery Plant 2 95OPAD108Minor Modification2026/3/232026/5/62026/5/72026/7/6Sequential
ColoradoLaramie Energy - MVS Compressor Station10OPME354Renewal2026/3/192026/5/42026/5/52026/7/3Concurrent
ColoradoAvago Technologies Wireless (USA) Manufacturing - Avago Technologies21OPLR442Initial2026/3/112026/4/242026/4/252026/6/23Concurrent
ColoradoDCP Operating Company - Milton Compressor Station21OPWE448Initial2026/3/102026/4/232026/4/242026/6/22Concurrent
ColoradoPublic Service Company of Colorado - Valmont Generating Station96OPBO131Renewal2026/3/32026/4/162026/4/172026/6/15Concurrent
ColoradoArcosa LWB - Arcosa Lightweight Boulder95OPJE084Initial2026/2/272026/4/132026/4/142026/6/12Sequential
ColoradoWES DJ Gathering - Latham Gas Plant24OPWE613Initial2026/2/262026/4/132026/4/142026/6/12Concurrent
ColoradoDCP Operating Company - Kersey-Mewbourn Natural Gas Processing Plant95OPWE062Renewal2026/2/192026/4/62026/4/72026/6/5Sequential
ColoradoCargill Meat Solutions Corporation - Fort Morgan Facility99OPMR210RenewalTBDTBDTBDTBDSequential
ColoradoECC Colorado Inc - WMMC221OPGU479Initial2026/2/132026/3/302026/3/312026/5/29Sequential
ColoradoEvergreen Natural Resources - Wet Canyon Compressor Station03OPLA266Renewal2026/2/122026/3/302026/3/312026/5/29Concurrent
ColoradoTallgrass Terminals - Grasslands Terminal23OPWE514Initial2026/2/122026/3/302026/3/312026/5/29Concurrent
ColoradoCripple Creek and Victor Gold Mining Company - Cresson Project11OPTE362RenewalTBDTBDTBDTBDSequential
ColoradoGeneral Services Administration - Denver Federal Center23OPJE609Initial2026/2/42026/3/202026/3/212026/5/19Concurrent
ColoradoREP Processing - Severance Compressor Station23OPWE518Initial2026/2/42026/3/202026/3/212026/5/19Concurrent
ColoradoTEP Rocky Mountain - Rulison Water Management09OPGA333RenewalTBDTBDTBDTBDConcurrent
ColoradoMagellan Pipeline Terminals - Aurora Terminal17OPAD399Renewal2026/1/172026/3/22026/3/32026/5/1Sequential
ColoradoCrestone Peak Resources Operating - Mustang Booster Station23OPAD524Initial2026/1/172026/3/22026/3/32026/5/1Sequential
ColoradoBroadAcre Landfill, Inc - Fountain Landfill97OPEP182Minor Modification2026/1/12026/2/162026/2/172026/4/17Sequential
ColoradoColorado Interstate Gas Company, LLC - Latigo Compressor Station95OPAR037Renewal2025/12/312026/2/132026/2/142026/4/14Concurrent
ColoradoTri-State Generation and Transmission Association, Inc. - JM Shafer Generating95OPWE096Renewal2025/12/302026/2/122026/2/132026/4/13Concurrent
ColoradoArrabelle at Vail Square - The Arrabelle17OPEA402Renewal2025/12/172026/1/302026/1/312026/3/31Concurrent
ColoradoSuncor - Commerce City Refinery Plant 295OPAD108Minor Modification2025/12/142026/1/272026/1/282026/3/30Sequential
ColoradoDCP Operating Company - Sullivan Compressor Station20OPWE429InitialTBDTBDTBDTBDSequential
MontanaCHS Inc- CHS Laurel Refinery 2026OP1821-22Renewal2026/3/272026/5/112026/5/122026/7/10Sequential
MontanaMontana Silversmiths Inc– Columbus Plant OP3395-06Renewal2026/2/52026/3/232026/3/242026/5/22Sequential
UtahBayview Landfill4900230005Renewal2026/3/252026/5/82026/5/92026/7/7Sequential
UtahPacifiCorp - Lake Side Power Plant4900241003Renewal2026/3/242026/5/72026/5/82026/7/6Sequential
UtahMcWane Ductile - Utah4900017005Renewal2026/2/262026/4/132026/4/142026/6/12Sequential
UtahPacifiCorp - Gadsby Power PlantDAQE-AN103550019-26Administrative Amendment2026/1/202026/3/52026/3/62026/5/4Sequential
UtahHEP WX Terminal100458002Renewal2026/1/152026/3/22026/3/32026/5/1Sequential
UtahKinder Morgan Altamont, LLC - Altamont Main Gas Processing Plant1300006003Significant Modification2025/12/312026/2/132026/2/142026/4/14Sequential
UtahInterstate Brick Company - Brick Manufacturing PlantDAQE-AN104230020-25Administrative Amendment2025/12/162026/1/292026/1/302026/3/30Sequential
WyomingPowder River Midstream, LLC - Morgan Draw Crenshaw Hill Compressor StationP0036872Renewal2026/3/252026/5/82026/5/92026/7/7Sequential
WyomingThunder Creek Gas Services, LLC - Crossbow Compressor StationP0037111Initial2026/3/252026/5/82026/5/92026/7/7Sequential
WyomingSouthern Star Central Gas Pipeline, Inc. - Riner StationP0039449Renewal2026/3/182026/5/12026/5/22026/6/30Sequential
WyomingColorado Interstate Pipeline, LLC - Laramie Compressor StationP0037146Renewal2026/3/112026/4/242026/4/252026/6/23Sequential
WyomingWES Powder River Holdings LLC - Highlight Gas PlantP0037151Renewal2026/2/252026/4/102026/4/112026/6/9Sequential
WyomingMicrosoft Corporation - Microsoft Cheyenne Data CenterP0039450Significant Modification2026/2/192026/4/62026/4/72026/6/5Sequential
WyomingEnterprise Jonah Gas Gathering Company LLC - Bridger Compressor StationP0037972Renewal2026/2/32026/3/192026/3/202026/5/18Sequential
WyomingDakota Coal company - Frannie Lime PlantP0038106Renewal2026/1/102026/2/232026/2/242026/4/24Sequential
WyomingBasin Electric Power Cooperative - Barber Creek Generation StationP0036890Renewal2026/1/102026/2/232026/2/242026/4/24Sequential
WyomingCity of Casper Solid Waste Division - Casper Solid Waste Management FacilityP0036838Renewal2026/1/72026/2/202026/2/212026/4/21Sequential

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 March 30, 2026
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