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Truck loading equipment <br /> Power supply and distribution <br /> All fuel tanks will have secondary containment. Some are double walled, others will be located <br /> within bermed or lined areas that have over 110% of the volume of the largest stored tank. Fuel <br /> tanks may be found in the northern extent of the currently permitted site within the processing <br /> area; See Map C-1. Several hazardous materials will be stored and used onsite throughout the <br /> project. These materials include products which are associated with diesel motors, and products <br /> associated with asphalt and concrete production. <br /> No night mining activity is scheduled for the operation; however portable lighting may be used <br /> within the pit from time to time. Portable lights will only be used at the bottom of the pit for the <br /> purpose of after hour equipment maintenance activities within the permitted hours in the winter <br /> months while the days are shorter. Portable toilets will be used for employees. All mining <br /> structures on site are shown on Map C-1. <br /> Existing fences border the entire section and site. Where mining produces shallower than 31-1:1 V <br /> slopes, no fence is required and will not be utilized. The operator commits to clearly marking the <br /> permit boundary. Speed limits and other traffic control signs can be found throughout the site <br /> and around the operation area. No problems are expected with vandalism. <br /> The site will use all existing roads to haul the product to its final destination. Mine access will be <br /> via 9 Rd from 125/Twelvemile Road accessed from CO-368 and CO-370 and Alamosa to the <br /> east, as it has been to this point. All roads are gravel until South County Road 4E/368 that is <br /> paved. All roads have gravel shoulders and no sidewalks. Peak months of haulage are May <br /> through September. <br /> No formal sediment settling pond or sump is located within the Garrett Pit site; however, the <br /> nature of mining leads to a depressed mined basin surrounded by site perimeter and pit specific <br /> isolation berms. Therefore, no stormwater or process water will leave the site and all runoff <br /> from a 100 year 24-hour rain event will be trapped on site and waters will infiltrate the pit floor <br /> within 72 hours. Onsite drainages will not be directed off any highwall into the pit. Slopes in the <br /> area of drainages will be maintained at or shallower than 2H:IV; easily achievable due to the <br /> Garrett Pit X GneK I ewicki aao Associntcs Pl.l(' <br /> February 2018 D-5 <br />