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Public Notice

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 Anschutz Exploration Corporation to operate one-hundred (100) portable compressor engines to consist of any combination of 1,895 hp Caterpillar G3606, 1,680 hp Waukesha L7044GSI, 1,380 hp Caterpillar 3516B, 1,380 hp Waukesha 5790GSI, 690 hp Caterpillar G3508B, 400 hp Caterpillar 3408TA, 400 hp Caterpillar CG137-8, 400 hp Waukesha F18, 380 hp Cummins KTA19GC, 203 hp Caterpillar G3306B, 203 hp Caterpillar G3306TA, 182 hp Caterpillar G3306NA and 132 hp Reliable 80L engines to be operated at various oil and gas well sites in Campbell, Converse, Crook, Johnson and Natrona Counties, 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 F030940 and permit number P0035689 under permits. This material may also be viewed online, at the above URL, utilizing a public computer at the Natrona County Library, Casper, Wyoming. Additionally, for the duration of the public comment period a copy of this public notice is available for public inspection at the Natrona County Clerk’s Office, Casper, 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 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 A0013892 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., Monday, March 27, 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

Publish: February 23, 2023

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