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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
ColoradoREP Processing - Pierce Gas Processing Plant23OPWE517Initial2026/6/252026/8/102026/8/112026/10/9Concurrent
ColoradoCargill Meat Solutions Corporation - Fort Morgan Facility99OPMR210Renewal2026/6/52026/7/202026/7/212026/9/18Sequential
ColoradoTri-State Generation and Transmission Association - Craig Generating Station96OPMF155Minor Modification2026/6/52026/7/202026/7/212026/9/18Sequential
ColoradoDCP Operating Company - Sullivan Compressor Station20OPWE429Initial2026/6/32026/7/172026/7/182026/9/15Sequential
ColoradoSpace Base Delta 2 - Buckley Space Force Base23OPAR541Initial2026/6/22026/7/1620267/172026/9/14Concurrent
ColoradoGrand River Gathering, LLC - East Mamm Creek Compressor Station05OPGA280Reopening for Petition Response2026/5/212026/7/62026/7/72026/9/4Sequential
ColoradoCF&I Steel, L.P. dba EVRAZ Rocky Mountain Steel - Rail Mill95OPPB086Minor Modification2026/5/202026/7/32026/7/42026/9/1Sequential
ColoradoTS Landfill - Broad Canyon Landfill17OPMO403Renewal2026/5/202026/7/32026/7/42026/9/1Concurrent
ColoradoDCP Operating Company - Platteville Natural Gas Processing Plant02OPWE252Minor Modification2026/5/192026/7/22026/7/32026/8/31Sequential
ColoradoElevation Midstream - Badger Central Gathering Facility21OPWE441Initial2026/5/72026/6/222026/6/232026/8/21Concurrent
ColoradoPublic Service Company of Colorado - Fort Saint Vrain Generating Station97OPWE180Renewal2026/5/52026/6/182026/6/192026/8/17Concurrent
ColoradoCheyenne Plains Gas Pipeline Company - Cheyenne Plains Compressor Station05OPWE281Renewal2026/4/302026/6/152026/6/152026/8/14Concurrent
ColoradoQB Energy Operating - High Mesa Water Treatment Facility08OPGA308RenewalTBDTBDTBDTBDSequential
ColoradoBAE Systems Space and Mission Systems - Aerospace Manufacturing Center23OPJE496Initial2026/4/212026/6/42026/6/52026/8/3Concurrent
ColoradoTEP Rocky Mountain - Rulison Water Management09OPGA333Renewal2026/4/172026/6/12026/6/22026/7/31Sequential
ColoradoCripple Creek and Victor Gold Mining Company - Cresson Project11OPTE362Renewal2026/4/22026/5/182026/5/192026/7/17Sequential
ColoradoDCP Operating Company - Wells Ranch Compressor Station20OPWE428Initial2026/4/22026/5/182026/5/192026/7/17Concurrent
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
MontanaNorthern Border Pipeline Company - Compressor Station No. 1OP2979-17 2026/7/22026/8/172026/7/182026/10/16Sequential
MontanaPhillips 66 - Great Falls TerminalOP2946-14 2026/7/22026/8/172026/8/182026/10/16Sequential
MontanaWBI Energy Transmission, Inc - Hathaway Compressor StationOP1628-08 2026/6/272026/8/102026/8/112026/10/9Sequential
MontanaCalumet Montana RefiningOP2161-23 2026/6/122026/7/272026/7/282026/9/25Sequential
MontanaWestern Sugar CooperativeOP2912-10Significant Modification2026/5/292026/7/132026/7/142026/9/11Sequential
MontanaNorthWestern Energy - Mainline #1 Field Station OP2428-16Renewal2026/5/192026/7/22026/7/32026/8/31Sequential
MontanaPhillips 66 Company - Billings RefineryOP2619-20 2026/5/92026/6/222026/6/232026/8/21Sequential
MontanaCHS Inc- CHS Laurel Refinery 2026OP1821-22Renewal2026/3/272026/5/112026/5/122026/7/10Sequential
North DakotaBasin Electric Power Cooperative Lonesome Creek StationAOP-28360 v2.0Renewal2026/7/112026/8/42026/8/252026/10/26Sequential
South DakotaMJF State Veterans Home - Hot Springs28.0103-27Renewal2026/6/242026/8/72026/8/82026/10/6Sequential
South DakotaPOET Bioprocessing – Big Stone28.0502-29Renewal and Minor Modification2026/6/22026/7/172026/7/182026/9/16Sequential
South DakotaSioux Falls Regional Sanitary Landfill - Sioux Falls28.1101-01Renewal2026/5/222026/7/62026/7/72026/9/5Sequential
South DakotaNorthern State Power Company - Xcel Energy - Sioux Falls28.0801-01Renewal2026/5/152026/6/292026/6/302026/8/29Sequential
South DakotaBrookings Regional Landfill - Brookings28.1191-06Renewal and Minor Modification2026/4/182026/6/12026/6/22026/8/28Sequential
South DakotaBlack Hills Power, Inc. - Rapid City28.0801-02Renewal2026/4/182026/6/12026/6/22026/8/28Sequential
UtahHEP Woods Cross Terminal1100458002Minor Modification2026/6/182026/8/32026/8/42026/10/2Sequential
UtahTrans-Jordan Landfill3500535005Renewal2026/5/42026/6/172026/6/182026/8/17Sequential
UtahCompass Minerals5700001004Renewal2026/4/212026/6/42026/6/52026/8/3Sequential
UtahBayview Landfill4900230005Renewal2026/3/252026/5/82026/5/92026/7/7Sequential
UtahPacifiCorp - Lake Side Power Plant4900241003Renewal2026/3/242026/5/72026/5/82026/7/6Sequential
WyomingDenbury Onshore - Beaver Creek Compressor StationP0037207Renewal2026/7/92026/8/242026/8/252026/10/23Sequential
WyomingAmerican Colloid company - Lovell PlantP0040070Renewal2026/6/122026/7/272026/7/282026/9/25Sequential
WyomingPronghorn Midstream, LLC - Augusta-Pebble Beach Compressor StationP0039773Renewal2026/6/122026/7/272026/7/282026/9/25Sequential
WyomingEOG Resources - Bolt 35 Compressor StationP0036843Initial2026/6/92026/7/232026/7/242026/9/21Sequential
WyomingColorado Interstate Pipeline - Rawlins Compressor StationP0039836Renewal2026/5/62026/6/222026/6/232026/8/21Sequential
WyomingCheyenne Light Fuel and Power Company - Cheyenne Prairie Generating StationP0038769Renewal2026/4/72026/5/212026/5/222026/7/20Sequential
WyomingWE Soda Wyoming, LP - Granger Soda Ash FacilityP0034125Renewal2026/4/72026/5/212026/5/222026/7/20Sequential
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

Permitting Under the Clean Air Act

  • Clean Air Act Permitting Around the Nation
    • New England Region (R1)
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    • Pacific Southwest Region (R9)
      • Air Permit Delegation and PSD SIP Approval
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      • About Title V Permitting
      • Permitting in Arizona
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      • 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 6, 2026
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