2014-06-16_REPORT - M1990057 - Laserfiche WebLink

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Permit M1990-057 2 Leadville Mill,Union Milling Company,LLC June 16,2014 Annual Report Property Permit M-1990-057 includes the Leadville Mill. The Hopemore Shaft has submitted an application for a separate permit. The permit operator is: Union Milling Company, LLC (UMC) Nick Michael, Member P. O. Box 620490 Littleton, CO 80162-0490 303-947-3499 The Leadville Mill is located in the Northeast Quarter of the Northeast Quarter of Section 33, and the Southeast Quarter of the Southeast Quarter of Section 28, Township 9 South, Range 80 West. The county designated address is 13815 Highway 24, Lake County, Colorado. The owner of the Leadville Mill is: Constructive Investments, LLC Nick Michael, Member PO Box 620490 Littleton, CO 80162-0490 Activities: June 18, 2013 to June 17, 2014 The mill remained idle, on care and maintenance status, with no production or milling occurring in the last 12 month period. Care and maintenance were the only activities that occurred during the past year at the mill. The Leadville Mill activities for the past 12 months are presented below. 1. Quarterly water quality sampling from monitoring well MW-1. MW-1 had insufficient water in the well during the summer, fall, winter and spring sampling periods. Therefore no sampling could be performed. 2. Quarterly surface water quality sampling from three stations, SW-1 through SW-3. There were insufficient stream flows to collect samples during the summer, fall, winter and spring sampling periods. Therefore no sampling could be performed. 3. Permanent mill permit identification signs (metal-style) were maintained on the main gate to the facility and on the mill building, identifying the permitee and permit number. 4. The barbed wire property boundary fence was repaired in various areas where it was broken by wildlife. Fence maintenance is required by our Lake County Conditional Use Permit. 5. Permit boundary stakes were maintained as required. 6. The mill buildings and equipment were maintained in preparation of reconditioning and restarting the mill. 7. Sediment control measures were performed on an as needed basis (temporary silt fence construction around the ore stockpiles, temporary historic tailings storage, and new tailings storage facility). Additionally, culverts were cleaned, and berms and roads were maintained as required. 8. Ore stockpiles remain covered with visqueen material as a temporary measure to minimize acid generating potential of sulfidic ores. This visqueen material remains in place as long as the material remains in place. Repairs were made as necessary on visqueen covers in early-June 2013.