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Public Notice
Power Resources Inc. d/b/a Cameco Resources (Cameco) of Douglas, Wyoming has applied for approval of the groundwater restoration of Mine Unit 1(one) per Source Material License WYSUA-1548 Amendment No. 3 from the Land Quality Division of the Department of Environmental Quality of the State of Wyoming. Mine Unit 1 (one) Wellfield is an in-situ recovery uranium mining wellfield located in the Smith Ranch-Highland Uranium Mine: (Sections 16 and 21, Township 36N, Range 72W to Sections 13 and 24, Township 35N Range 75 W, USGS 7.5' Topographic Quadrangle Map, Converse County, Wyoming). The Smith Ranch-Highland Mine is located in the Southern Powder River Basin approximately 25 miles northwest of the town of Douglas, Wyoming. The mining operation in Mine Unit 1 (one) began June 1997 and is estimated to continue until 2029. The land, after mining, will be returned to their pre-ISR land use of livestock grazing and wildlife habitat.
The Department of Environmental Quality has issued a Pre-Decisional State Decision Document to approve the Mine Unit 1 Final Groundwater Restoration and Closure Report. Information regarding this initial draft decision and the application may be reviewed in the office of the Land Quality Division of the Department of Environmental Quality in Cheyenne or the Converse County Clerk's Office Douglas, Wyoming. The application is available for public viewing along with the initial draft decision. Written comments or objections to the proposed application must be received by the Administrator of the Land Quality Division of the Department of Environmental Quality, 200 West 17th Street, Suite 10, Cheyenne, WY 82002, before the close of business (5:00 PM MST), April 6, 2026 (30 days after last publication). Objections may also be submitted by the same deadline via the Land Quality Division’s electronic comment portal at https://lq.wyomingdeq.commentinput.com/. Only the Mine Unit 1 (one) Final Groundwater Restoration and Closure Application for Restoration Approval is open for public review. If an objection specifically requests a public hearing with the Department and is found to be an aggrieved party as defined in W.S.§35-11-103(a)(vii), a public hearing shall be held after the final date for filing objections.
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