Public Notices: Wexpro Company (F018836/A0016383)

Wyoming Department of Environmental Quality  | view as a webpage

Wyoming Department of Environmental Quality

Public Notices: June 27, 2024




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:

Wexpro Company (F018836, P0037758):  

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 Wexpro Company (dba Dominion Energy Wexpro) (CMP000811) to modify and operate the Dry Piney Unit Central Facility (F018836) by updating the equipment list to represent the current as-built configuration, with a smokeless combustion device to control volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions associated with the condensate tanks and active produced water/blowdown tanks, located in the NW1/4 of Section 12, T27N, R114W, approximately six (6) miles northwest of Calpet, in Sublette County, Wyoming. Wexpro Company (dba Dominion Energy Wexpro) has met the demonstration requirements under Chapter 6, Section 2(c)(ii) for this permitting action since current emissions are less than emissions during the baseline period. VOC emissions have decreased 23.6 TPY from the baseline period and NOX emissions have decreased 4.7 TPY from the baseline period. These reductions have been added to Wexpro Company (dba Dominion Energy Wexpro)’s offset bank to use for future permitting actions.

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 F018836 and permit number P0037758 under permits. This material may also be viewed online, at the above URL, utilizing a public computer at the Sublette County Library, Pinedale, Wyoming. Additionally, for the duration of the public comment period a copy of this public notice is available for public inspection at the Sublette County Clerk’s Office, Pinedale, 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 A0016383 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, July 29, 2024 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