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"e~eived <br />• Exhibit Page 8 <br />MAR 2 ~ ?001 <br />GENERAL CONCEPT: EXHIBIT D -MINING PLAN Div/slDouofMnei~ld$Gec <br />The site consists of alluvial sand and gravel deposits of twenty or more feet thickness ~ <br />overlaying bedrock of the sedimentary Morrison Formation. <br />Prior to mining being conducted, existing road access and drainage will be improved, replaced <br />or supplemented to meet current and future (post-mining) needs of the landowner, including <br />compliance with Colorado Department of Transportation requirements. Areas around the road <br />and pipe will be reclaimed upon their completion: these are permanent structures. <br />Mining of the site will proceed generally from the south to the north and the east to the west. A <br />total of approximately 21 acres will be affected by operations. The permitted area is entirely <br />surrounded by areas under the same ownership as a buffer zone from neighboring landowners <br />and from the river to protect riparian habitat and wetlands. A buffer zone of approximately 75 <br />feet from the highway will be maintained, through which pass power lines, telephone cable, <br />fence, and the Home Ditch. Access is through a relocated existing access off the highway <br />which also serves the Line Camp ranch headquarters and will continue as Line Camp/field/pond <br />access after mining. <br />Mining will be conducted in two broad phases, the first ("upper level") in which no pumping of <br />water will be done (storm water from the pit will flow through an existing gravity drain pipe), and <br />a second ("lower level") in which water will be pumped out of the pit and discharged (through <br />the same drain pipe). <br />Mining consists of: <br />1. stripping and conserving topsoil (averaging 2 feet), screening most of these materials to <br />remove oversized, then moving these materials either to berms, other stockpiles or directly <br />to backfill and reclaim areas; <br />2. removing of the sand and gravel (with loaders and/or backhoes) and moving these <br />materials to stockpiles in the plant area; <br />3. screening and/or washing of sand and gravel (and possible crushing of oversize materials), <br />moving these to stockpiles in the plant area prior to shipping from the site; and <br />4. use of excess fines (from screening and/or washing) for backfilling, either immediately, or <br />after stockpiling. <br />Screening and washing may be done with a portable plant brought into the site as required. <br />Oversize materials (cobbles) will be stockpiled and sold as-is, used as backfill, and/or may be <br />crushed periodically for use as aggregate. Crushing and associated screening may be done <br />with a portable plant brought into the site as required. While unlikely, if plants are not brought <br />on site, processing will be done at an off-site location at a plant site such as a ready-mix plant <br />or other plant using the material. Other than the upper two feet (which will be considered and <br />treated as topsoil after it is screened to remove oversize rocks), there is no overburden on the <br />site. <br />Production will not exceed 200,000 tons per year and will generally be less than 150,000 tons <br />per year. For planning purposes, annual production estimates of approximately 140,000 tons <br />per year are used. Based on this annual tonnage, life of this pit is approximately 5 years. <br />Each year, a plant stockpile area of between 1 and 3 acres will be used for materials stockpiles <br />and a plant area of about half that size will be required for the screening/washing plants and <br />Four States Aggregates, LLC 15 MAR 2001 <br />Application for Permit: Line Camp Pit M-2001-001 FSA-LCP-D2-001 <br />