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• EXHIBIT ~ -MINING PLAN <br />(a) Description of the method(s) of mining to be employed in each stage of the operation as <br />related to any surface disturbance on affected lands; <br />Overburden will be stripped and stockpiled exposing the saleable material. Dewatering <br />trenches will be excavated down to groundwater to control on-site water levels. Once water <br />levels are controlled allowing heavy equipment to operate, the material wilt be excavated down <br />to bedrock. Groundwater recovered in the dewatering ditch will be discharged in accordance <br />with a Colorado Discharge Permit SystemlNPDES regulations. <br />(b) Earthmoving; <br />Overburden will be stripped with scrapers or bulldozers and stockpiled to the south as mining <br />proceeds from north to south. Excavators, front-end loaders, and bulldozers will be used to <br />mine and stockpile the saleable material. Conveyor belts will be utilized to move the stockpiles <br />from north to the processing area. The mining face will be Heady vertical to 0.5:1 slope. <br />(c) All water diversions and impoundments; and <br />Dewatering trenches surrounding the upstream side (inside) of the pit will control water levels <br />• and diversion pumps will deliver water to a sump (low lying area) and then pumps will divert <br />this water back to existing water courses via existing right-of-way. Settling ponds (located in <br />the processing area) exposing groundwater will be used to wash the aggregate. <br />(d) The size of area(s) to be worked at any one time. <br />The maximum area to be mined atone time is approximately 20 to 25 acres. <br />(e) An approximate timetable to describe the mining operation. The timetable is for the purpose of <br />establishing the relationship between mining and reclamation during the different phases of a <br />mining operation. <br />The Operator anticipates extracting between one million and two million tons of aggregate per <br />year, however, production rate may vary based on market demands. Reclamation will likely <br />begin two years after mining is complete in each phase. <br />(f) Use Mining Plan Map in conjunction with narrative to present: <br />Nature, depth and thickness of the deposit and thickness and type of overburden to be <br />removed <br />Overburden Silty Sand: The overburden silty sand is an eolian (wind deposited) soil and <br />occurs near surface across the entire site as a thin layer, of approximately 5 feet thick. The <br />SW TKO Joint Venture, LLC. -Adams Sand and Gravel Mine -112 Reclamation Permit Amendment Page 12 <br />