Public Notices: Thunder Creek Gas Services, LLC (F031186/A0015139)

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

Public Notices: September 6, 2023




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:

Thunder Creek Gas Services, LLC (F031186, P0036745):  

CHAPTER 6, SECTION 2 CONSRUCTION/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 Thunder Creek Gas Services, LLC to construct the Javelin Creek Compressor Station with the following equipment five (5) 1,775 Caterpillar G3606 A3 engines, 1,875 hp Caterpillar G3606 A4 engines, 2,500 hp Caterpillar G3608 A3 engines, 2,675 hp G3608 A4 engines, 1,380 hp Caterpillar G3516B/ULB engines, 1,340 hp Caterpillar G3516LEU/LE+ engines, 1,470 hp Waukesha L7042GSI engines, 1,680 hp Waukesha L7044 GSI engines, 2,250 hp Waukesha 9394 GSI S4 engines, 2,500 hp Waukesha 9394 GSI S5 engines (ENG001-ENG005), one (1) 300 hp or less rich or lean burn generator engine (ENG006), up to two (2) TEG dehydration units with single or combined capacity up to 70 MMscfd, up to two (2) 1.5 MMBtu/hr or less TEG reboiler(s), two (2) 500 bbl or less atmospheric produced water tanks equipped with 0.25 MMBtu/hr or less heaters, two (2) 50,000 gal or less pressurized condensate bullet tanks, two (2) truck load-outs, one (1) 15 MMscfd or less JT skid, up to two (2) combustors/ flares for TEG dehydrators, six (6) pig receivers and six (6) pig launchers, one (1) coalescer for water removal. The Javelin Compressor Station is located in the NE¼ NE¼ of Section 12, T35N, R70W, approximately fifteen (15) miles south-southeast of Bill, Converse County, Wyoming.

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, utilizing facility ID F031186 and permit number P0036745 under permits. This material may also be viewed online, at the above URL, utilizing a public computer at the Converse County Library, Douglas, Wyoming. Additionally, for the duration of the public comment period a copy of this public notice is available for public inspection at the Converse County Clerk’s Office, Douglas, Wyoming.

Written comments may be directed to Nancy Vehr, Administrator, Division of Air Quality, Department of Environmental Quality, 200 West 17th St., Cheyenne, Wyoming 82002 or by fax (307) 635-1784. Please reference A0015139 in your comment. Comments may also be submitted electronically through the Division’s website ( Comments submitted by email will not be included in the administrative record. All comments received by 5:00 p.m., Friday, October 6, 2023 will be considered in the final determination on this application. A public hearing will be conducted only if in the opinion of the administrator sufficient interest is generated or if an aggrieved party so requests. Para español, visite Americans with Disabilities Act: special assistance or alternative formats will be made available upon request for individuals with disabilities. Please provide at least fourteen (14) days before the close of the public comment period for such requests.

                   Please note that the Wyoming Department of Environmental Quality Cheyenne Office has moved. 
                                                                               The new address is:

                                                                               200 West 17th Street
                                                                              Cheyenne, WY 82002