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concrete aggregate, or provide road base for any new roads within an economic distance to the <br /> site. <br /> It is extremely unlikely that any toxic or acid-producing materials will be encountered during <br /> mining as past mining efforts show the material is alluvial in nature. However, in the event that <br /> such materials are encountered,they will be covered with subsoil and topsoil from onsite <br /> stockpiles to the same depths outlined in the reclamation plan and no more mining will occur in <br /> the area. <br /> 4. Topsoil and Overburden Handling <br /> NRCS soil data classifies onsite topsoil as gravelly sandy loam and past mining and field <br /> observations predict an expected 12 inch average depth. Twelve inches of topsoil across 77.5 <br /> acres of disturbance will generate 125,033 CY of topsoil. The alluvium deposit is found directly <br /> below the topsoil; therefore, no overburden is expected onsite. If any overburden is encountered, <br /> it will be handled in accordance with the plans laid out in this application. Both topsoil and <br /> overburden will be used onsite for reclamation of mined out areas. Topsoil from initial stripping <br /> of an area will be stored in berms and stockpiles as seen on Map C-2. Any topsoil or overburden <br /> stockpile that is in place longer than 180 days will be vegetated to prevent wind erosion. <br /> 5. Water Information,Rights and Augmentation <br /> All water rights issues including: availability of water for the operation, consumption rates, dust <br /> control, etc. is presented in Exhibit G- Water Information. <br /> 6. Schedule of Operations <br /> Mining operations will occur as dictated by demand until the maximum rates described earlier in <br /> the mine plan are met. Mining, and processing will take place no more than 12 hours per day, <br /> between the hours of 7 am and 7 pm, Monday through Saturday. Product sales and trucking may <br /> take place 24 hours a day, 7 days a week. <br /> 7. Clear Creek County Impacts and Environmental Impacts <br /> The impacts to Clear Creek County will be limited. No dust is expected from the operation due <br /> to the pit and roads being watered as needed. Furthermore, the location of mining activity within <br /> DMR , <br /> April 2018 D-5 <br />