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' There is no drilling,blasting or explosives planned to be used on this site. The mining operation does not <br /> g P p g P <br /> ' propose to generate hazardous materials or waste. <br /> No material will be processed on site; this pit will only export material. Once the raw material is <br /> ' extracted, it will be taken to Bucklen Services's yard in either belly, end, or side dump trucks using a <br /> wheel loader or excavator directly from the virgin bank. It is estimated that an average of 1,000 tons will <br /> be transported daily,resulting in approximately 250,000 tons annually. A large majority of the material <br /> ' will be crushed, screened and washed at Bucklen Services's yard. The pit will be mined dry,requiring <br /> dewatering trenches and pumps throughout the entire process of mining; no water will be impounded on <br /> site.Prior to mining, a dewatering trench will be constructed around the perimeter of the site to collect <br /> ' groundwater that drains from deposit and surrounding alluvium. The trench will allow for sediment to <br /> settle before the water is discharged to the Storm Lake Drainage Ditch. Please refer to Exhibit G—Water <br /> Information for details regarding dewatering plans. No exported material is planned to be stockpiled in <br /> the pit or throughout the site. Due to this,there will be no finished product located within this site. <br /> Prior to the start of mining or shortly after mining has begun, a slurry wall will be constructed around the <br /> mine boundary. This will aid in decreasing dewatering demands, as well as,future reclamation plans of <br /> water storage. <br /> All surface water within the mine areas will rain internally. There will not be any uncontrolled releases of <br /> surface water and sediment from mining areas. Stormwater collected in the open mine will be managed <br /> in accordance with a Colorado Discharge Permit System(CDPS) discharge permit for this operation. <br /> ' Sediment generated from localized stormwater runoff and surface drainage will be managed according to <br /> the Stormwater Management Plan(SWMP) that will be developed in conjunction with the CDPS permit. <br /> The SWMP will be designed to prevent the contact and transport of potential contaminants by stormwater <br /> ' flows. <br /> In order to minimize any air pollution, industry best practices will be followed. This includes but is not <br /> ' limited to minimizing unnecessary material movement and watering roads where vehicles create dusty <br /> conditions. <br /> Mining Schedule <br /> Bucklen Services Company proposes to move approximately 250,000 tons of material annually.At this <br /> ' rate, it is expected that the site will be mined and reclaimed in 10 years,however,the rate of mining and <br /> life of the mine is completely dependent upon demand and market conditions. <br /> Mining Phases Overview <br /> The mining process for this site requires only one phase,but several levels or lifts. This phase is broken <br /> ' down into three smaller steps with the corresponding timeline: <br /> a) Strip topsoil/overburden and stockpile it—approximately 1 year <br /> ' b) Dig dewatering ditches and haul off dry material until the bottom of gravel deposit is reached— <br /> approximately 10 years <br /> c) Slurry wall to be installed as finances allow(ideally in the first 25% of mine's excavation)— <br /> ' approximately 1 year post mining <br /> Tollgate Pit <br /> DRMS 112 Permit Application <br /> Page D-2 <br />