Public Notices: Tallgrass Midstream, LLC (F000469/A0018357)
Wyoming Department of Environmental Quality sent this bulletin at 10/28/2025 08:00 AM MDT|
Wyoming Department of Environmental Quality | view as a webpage 
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Public Notices: October 28, 2025
***************************************************************************************************************************************** Electronic copies of all public notices, permit application analyses, and permit applications are now available through the IMPACT Public-Facing Website OpenAir. For more information on OpenAir, please visit our website here. **************************************************************************************************************************************** The Division of Air Quality, proposes to approve the following requests: CHAPTER 6, SECTION 2 CONSTRUCTION/MODIFICATION PERMIT - Department of Environmental Quality, Division of Air Quality PUBLIC NOTICE: In accordance with Chapter 6, Section 2(m) of the Wyoming Air Quality Standards and Regulations, notice is hereby given that the State of Wyoming, Department of Environmental Quality, Division of Air Quality, proposes to approve a request by Tallgrass Midstream, LLC to modify the West Porcupine Compressor Station located in the NE ¼ of Section 10, T42N, R71W, approximately nine (9) miles south-southeast of Wright, in Campbell County, Wyoming. The proposed changes involve updating compressor blowdown, start-up, and warm-up (SSM) emissions for engines ENG001-ENG004 and combining the previously permitted emission units BVC003 and BVC005, which are associated with engines ENG001-ENG004, under a single emission unit identifier, BVC003. For the duration of the public comment period, the permit application, the agency’s analysis, and the public notice are available for public inspection online at https://openair.wyo.gov, utilizing facility ID F000469 and permit number P0040467 under permits. This material may also be viewed online, at the above URL, utilizing a public computer at the Campbell County Library, Gillette, Wyoming. Additionally, for the duration of the public comment period a copy of this public notice is available for public inspection at the Campbell County Clerk’s Office, Gillette, Wyoming. In accordance with the Americans with Disabilities Act, special assistance or alternate formats will be made available upon request for individuals with disabilities. Written comments may be directed to Amber Potts, Administrator, Division of Air Quality, Department of Environmental Quality, 200 West 17th St., Cheyenne, Wyoming 82002 or by fax (307) 635-1784. Please reference A0018357 in your comment. Comments may also be submitted electronically through the Division’s website (http://aq.wyomingdeq.commentinput.com). Comments submitted by email will not be included in the administrative record. All comments received by 5:00 p.m., Friday, November 28, 2025 will be considered in the final determination on this application. A public hearing will be conducted only if in the opinion of the administrator
Please note that the Wyoming Department of Environmental Quality Cheyenne Office has moved. 200 West 17th Street |
