2026-01-15_REVISION - M1990057 (2)

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NOTICE Consideration of Hard Rock Reclamation Permit Amendment DATE: January 15, 2026 TO: Colo. Dept. of Public Health & Environment Water Quality Control Division 4300 Cherry Creek Drive South Denver, CO 80246-1530 FROM: Lucas J. West RE: Leadville Mill - File No. M-1990-057, Union Milling Company, LLC Amendment (AM-2) Leadville Mill 110(d) Amendment Please be advised that on January 15, 2026, Union Milling Company, LLC, whose address and telephone number are P.O. Box 620490, Littleton, CO 80162-0490; (303) 947-3499, filed an application for a/an Amendment (AM- 2) to M1990057, Leadville Mill, which is located approximately 2 miles Southwest of Leadville, Section 28, Township 9S, Range 80W, 06th Principle Meridian, in Lake County. Minor flowsheet change, new flotation reagents, redesigned tailings, new containment pond, updated water management plan A decision date has been set for February 14, 2026.Written comments or objections to the application may be submitted to and additional information obtained from Lucas J. West at the Division of Reclamation, Mining and Safety, 1313 Sherman St. Room 215 Denver, CO 80203, by telephone at (303) 919-2997. Union Milling Company, LLC is required to publish a public notice in a newspaper of general circulation in the locality of the mining operation. If you wish to make comments on or objections to the mine plan and/or the reclamation plan, they must be submitted within ten (10) days of the newspaper public notice to be considered in the application review process by the Division. You should contact the applicant for the newspaper publication date. If we do not receive your comments or any objection by the end of the public comment period, the Division will assume you have no objection or comment to the proposed activity. M-GR-03A-P