Public Notice No. 7607



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 Mesa Natural Gas Solutions LLC to remove quantity limits on each make/model of engine, allowing for flexibility to operate 350 engines in any combination of 581 hp Doosan 22L Turbo, 481 hp 18L Turbo, 390 hp Doosan 14L Turbo, 268 hp Doosan 11L Turbo, 201 hp Doosan 8L Turbo, or 118 hp Doosan 8L Naturally Aspirated (NA) engine.  The multiple portable engine fleet will be operated at oil and gas well sites at various locations in Albany, Campbell, Carbon, Converse, Crook, Fremont, Goshen, Johnson, Laramie, Lincoln, Natrona, Niobrara, Park, Platte, Sweetwater, Uinta and Weston 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 F027039 and permit number P0028455 under permits.  Additionally, during the state of emergency declared by Governor Gordon on March 13, 2020, if you have questions about or need assistance accessing the materials, please contact Nancy Vehr, Air Quality Division Administrator, Department of Environmental Quality, 200 West 17th St., Cheyenne, Wyoming 82002, by fax at 307-635-1784, via phone at 307-777-3746, or via email at 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 A0011067 in your comment.  Comments submitted by email will not be included in the administrative record.  All comments received by 5:00 p.m., Monday, November 23, 2020 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.  For the duration of the state of emergency declared by Governor Gordon on March 13, 2020, public hearings will be conducted telephonically. Para español, visite

Public Notice No. 7607 published in the Torrington Telegram on October 21, 2020.