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(b) Earthmoving; <br />All topsoil material will be stripped and stockpiled using bulldozers, motorgraders and <br />front-end loaders. All mined materials will be excavated and handled onsite using <br />bulldozers and front-end loaders to feed [he crusher/screening equipment spread and to <br />temporarily stockpile processed materials. Front-end loaders will be used to load haul <br />tracks. <br />(c) Water diversions and impoundments; <br />L Mining of [he gravel ridges will be done at an elevation that will not expose groundwater. No surface <br />water or groundwater will be intercepted or exposed. Silt fences, straw bales and/or berms will be <br />erected around active mining areas so that they will not release sediments during storm events. Site <br />storm waters will be handled as specified in the S[ormwa[er Management Plan (SWMP) for the Gray <br />Pit # 2. <br />2. The groundwater table will not be impacted by this operation. There are no wells in the proposed area <br />or within 200 feet of the proposed area of operations. The proposed operation will not expose or <br />intercept any groundwater. Groundwater exposure will not occur during or after mining operations at <br />the site. Contract operators will supply their own water needs from offsite sources. Currently, a[ other <br />sites permitted by the applicant, contract operators purchase "municipal" water from the City of <br />Montrose. Similar offsite resources will be used at the proposed Gray Pi[ # 2 site as well. <br />The proposed permit area has no stock ponds, ditches or reservoirs. A small stream drainage in the <br />southern /sou[heas[em portion of the site and a small associated wetland receive drainage and/or runoff <br />from storm events. This wetland has been reviewed b}' the USACOE and will be protected by silt <br />fencing. The wetland/stream and associated 50 foot buffer zone amount [o approximately 6 acres. <br />4. No water rights will be impacted by this operation in compliance with Colorado water Taws and <br />regulations. The operation will comply with the U.S. Army Core of Engineers (COE) regulation by <br />not disturbing the wetland described in 3 above. Silt fences and sediment retention berms or ditches <br />will be maintained alongside roads and excavation areas to reduce erosion and limit mnoff from storm <br />events into wetland and riparian areas as necessary. <br />(d) The size of area(s) to be worked at any one time; <br />As stated above m Exhibit D-(al Mining Plan -Description of Methods, a total of 39.74 <br />acres is within [he proposed permit area of which approximately 33.74 acres will be <br />ultimately disturbed by mining activities. The 33.74 acres will be divided into two <br />"Phase" areas of 17.74 and 16 acres respectively. The initial area of operation in [he <br />northwest corner of the site in the Phase l area will be approximately 7-S acres. <br />Mining operations at the site will begin at the top of the western ridge conducting facial <br />extraction of the gravel deposits offthe slope in approximately 20 foot lifts following the <br />existing site topography downslope. Topsoil stripped from [he initial area of operations <br />will be stockpiled m the west and north 50 foot perimeter buffer zones. Trees and brush <br />will be removed with a dozer and piled a[ various locations on the site perimeter out of <br />mining and traffic areas as wildlife habitat. As each lift is completed, the 1ift16ench slopes <br />will be graded to match the surrounding topography leaving a gradual slope from west to <br />east along [he east flank of the large north/south trending ridge. Any available topsoil will <br />