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to settle out any solids prior to release. The dewatering pond will be located greater than 400 <br /> feet from the Arkansas River and within Phase Seven. A trench will be dug through the <br /> unaffected area from the dewatering pond to the Arkansas for release. <br /> Earthmoving will be accomplished using bulldozers, front end loaders and/or scrapers <br /> depending on the depth of plant growth material and overburden. Aggregate will be processed <br /> and sized using a crusher and screens. A portable asphalt or concrete batch plant may be <br /> onsite as projects warrant. <br /> All plant growth material and topsoil will be salvaged and stockpiled for reclamation <br /> use. These stockpiles will be located at the perimeter of the site and posted as reclamation <br /> topsoil. Waste rock and overburden will be stockpiled and used to rebuild the pit floor and <br /> slopes during reclamation. Overburden perimeter stormwater diversion berms will be <br /> constructed as excavation and reclamation progresses. These berms will serve to control <br /> erosion and sedimentation from reaching any drainage. Water for dust suppression will be <br /> pumped from the onsite well adjudicated for this type of activity. <br /> Bulk storage of fuel and small amounts of lubricants will be stored onsite and will be <br /> housed in an earthen berm that will have a capacity of at least 110%of the tanks and <br /> containers to be housed. <br /> The operation will wash material onsite and will utilize water from an adjudicated well <br /> onsite. Water will be used with a wash plant to wash sand onsite. Two wash ponds will be <br /> constructed and the water will be recirculated for continual use. This operation will consume <br /> approximately 20-acre feet of water each year. <br /> No acid or toxic producing materials will be exposed during mining. No explosives will <br /> be used in conjunction with mining or reclamation. <br /> The mining operation consists of an access road from the southern end of the site. The <br /> access road is 40' wide. The Colorado Department of Transportation has granted an Access <br /> Permit for this site and there is an accel/decel lane on Highway 50 at this entrance. All interior <br /> haul roads will be temporary and will be reclaimed after the mining has been completed. It is <br /> estimated that the life of the pit is up to 50 years and is dependent upon demand. <br /> This is a privately owned site and does not require the State Historic Preservation Office <br /> requirements for a cultural or historic study. If the operator encounters any structure of note, <br /> the State Historic Preservation Office will be notified. <br />