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MINING PLAN EXHIBIT D (cont) <br />this upper layer is an overburden layer of dirty sand unsuitable <br />for making concrete sand. This material will be used for back - <br />filling low areas in the Plant Site area or sold as structural <br />fill. <br />SOILS AND OVERBURDEN <br />There are three types of soils found on the site. These <br />soils appear to be typical along the South Platte River in Morgan <br />County. They have no unusual qualities and usually lie within <br />the flood plain area along the South Platte river. See EXHIBIT <br />I/J for the soils information prepared by the Mr. CW Scott of the <br />Morgan District of the Natural Resources Conservation Service. <br />The soil information presented by the NRCS is not site specific, <br />it describes in general terms the nature of the soils found at <br />this site. Additional information on the soils was obtained from <br />the NRCS Web Soils Survey site. <br />The three types of natural soil on the parcel as determined <br />by the Natural Resources Conservation Service, are designated as <br />map Units Wc, Wf & Wt - see MAP EXHIBIT I -1 for the locations of <br />these soils. Unit Wc, Wann Clay Loam, saline, covers approxi- <br />mately 1.10 ac. or 2.5% of the mined area. This soil is a very <br />dark grey clay loam, that is high in free lime and granular in <br />structure. This description applies to the top 8 to 12 inches of <br />material. The only portion of soil we will disturb is in the <br />southeast and southwest corners. <br />Unit Wf, Wann fine sandy loam, saline, covers 34.30 ac.± or <br />75.2% of the mined area. This soil is described as being found <br />in flood planes throughout Morgan County. The surface material <br />is a very dark grey fine sandy loam that varies from 8 to 10 <br />inches thick, that is high in free lime and granular in struc- <br />ture. On this parcel this soil covers most of the area to be <br />mined. We will salvage as much of the upper soil layer as <br />possible to use during reclamation. <br />Unit Wt, Wet alluvial land, covers approximately 4.30 ac . ± or <br />9.5% of the mined area. Most of this soil lies within the <br />existing mine area and has been stripped and stockpiled. It is <br />described as a dark colored soil lying in nearly level areas that <br />have slight depressions. The surface material is similar to the <br />Wc soils in it is a very dark grey fine sandy loam that varies <br />from 8 to 10 inches thick, that is high in free lime and granular <br />in structure. <br />The remaining 7.12 acres or 15.2% that is not in one of <br />these three soils classifications. They are areas that have been <br />