DEQ - Air

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 Black Hills Bentonite LLC to establish the Keyhole State Project, a 317 acre mine, which will include exposed acreage, stockpiling and haul roads located in the E½ NW¼,W½ NW¼ NE¼, NW¼ SW¼ NE¼, S½ SW¼ NE¼, S½ SE¼ NE¼ and SE¼ of Section 16, T50N, R66W, approximately nine (9) miles east-northeast of Moorcroft, in Crook County, Wyoming. No blasting, hot mix asphalt plants or concrete batch plants are planned for this site. The applicant estimates an annual production rate of 25,000 tons per year.

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 F031010 and permit number P0035938 under permits. This material may also be viewed online, at the above URL, utilizing a public computer at the Crook County Library, Sundance, Wyoming. Additionally, for the duration of the public comment period a copy of this public notice is available for public inspection at the Crook County Clerk’s Office, Sundance, Wyoming. In accordance with the Americans with Disabilities Act, special assistance or alternate formats will be made available upon request for individuals with disabilities.

Pursuant to the provisions of the Wyoming Environmental Quality Act and the Wyoming Air Quality Standards and Regulations, a public hearing relative to the requested issuance of an air quality permit for the proposed construction will be held in person at 6:00 pm, Thursday,

February 23, 2023, in the Pine Haven Community Center, located at 3 Industrial Park, Pine Haven, in Crook County, Wyoming. All comments received by February 23, 2023 will be considered by the Division. 

The hearing will be conducted pursuant to the provisions of Chapter IX, Section 5 of the Rules of Practice and Procedure adopted by the Environmental Quality Council, and therefore, will not be conducted as a contested case. The purpose of the hearing is to gather information concerning the emissions of air pollutants into the atmosphere and the impact of such pollutants on the ambient air quality. The scope of the hearing will be limited to such issues in order for the Department of Environmental Quality to determine whether or not the applicable Air Quality Standards and Regulations will be violated as a result of the construction of the facility.

The comment period will end at the close of the public hearing on February 23, 2023. Written comments may be directed to Nancy E. 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 A0014305 in your comment. Comments submitted by email will not be included in the administrative record. All comments received up to the closing of the public hearing, Thursday February 23th, will be considered in the final determination on this application.

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 A0014305 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 close of the hearing, Thursday, February 23, 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 deq.wyoming.gov. 

Publish: January 26, 2023