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The Wyoming Department of Environmental Quality (WDEQ) Underground Injection Control (UIC) Program regulates certain discharges of pollutants into groundwaters of the state. Operators of these discharges are required to receive coverage under a UIC permit. The UIC Program is proposing to extend a groundwater reclassification in the Area of Emplaced Waste for DDW#1R and DDW#2 associated with permit (Permit No. 2013-0057 V2.0 (2023-294)) for Cameco Resources, Gas Hills ISR. These wells are used for the disposal of commercial non-hazardous fluids. The permit applicant is Cameco Resources, P.O. Box 1210, Glenrock, WY 82637. The Gas Hills ISR injection wells are located in Fremont and Natrona Counties, Wyoming. Specific locations of the injection wells are identified in the draft permit renewal in Table 1. An aquifer exemption expansion has been submitted to the USEPA for the Area of Emplaced Waste. The expansion is to increase the already exempted area by 749 feet for DDW#1R and 588 feet for DDW#2.
The public comment period begins February 15, 2025, and ends March 17, 2025. Electronic copies of the proposed permit and relevant application materials are available for review.
During the 30-day public comment period, any interested person may submit written comments on the proposed permit and may request a public hearing be held. Electronic comments may only be submitted through and accepted by the WDEQ comment portal provided at http://wq.wyomingdeq.commentinput.com/.
Requests for public hearings on permit applications or modifications must be made in writing to the administrator and shall state the reasons for the request. Requests for public hearings on permit issuance, denial, revocation, termination, or any other department action appealable to the Council, shall be made in writing to the Chairman of the Environmental Quality Council (Chairman, Wyoming Environmental Quality Council, 2300 Capitol Ave., Hathaway Bldg. 1st, Room 136, Cheyenne, WY 82002) and the WDEQ Director (Director, Wyoming Department of Environmental Quality, 200 West 17th Street, 4th Floor, Cheyenne, WY 82002) and state the grounds for the request. The Council shall hold hearings pursuant to the WDEQ Rules of Practice and Procedure.
All written comments and requests received prior to 5:00 P.M., March 16, 2025, in the Cheyenne office will be considered. Electronic comments may be submitted to the link identified above. Comments submitted by email will not be considered. Written comments may be directed to Mr. Justin Scott, P.G., UIC Program Manager, Wyoming Department of Environmental Quality, Water Quality Division, 200 West 17th Street, 2nd Floor, Cheyenne, Wyoming 82002 or by fax at (307) 635-8275.
Para español, visite deq.wyoming.gov. 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.
Aquifer Exemption Request, EPA Correspondence, February 6, 2025
Aquifer Exemption Request, UIC 2023-294 Gas Hills Area of Emplace Waste Figures
Aquifer Exemption Request, EPA Aquifer Exemption Approval DDW #1 and DDW #2
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