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1 <br />Soils in the area have been derived dominantly from alluvial <br />and eolian sediments. Soils in the floodplain of Kiowa Creek <br />have formed in sandy and gravelly alluvium and are commonly less <br />than 36 inches deep over unconsolidated sand and gravel. Tex- <br />tures are loam to clay loam and are stratified. Thin sand, silt, <br />' or gravel layers may occur within the soil. Available water <br />capacity ranges from low to high, and permeability is slow to <br />very rapid. Electrical conductivity is 0 to 8 mmhos/cm. Soils <br />on nearly level to moderately sloping uplands to the east of the <br />' permit area are more than 60" deep and well to somewhat exces- <br />sively drained. The Blakeland and Truckton soils are dominant in <br />this area. These soils consist of loamy sands, sands, and sandy <br />looms that have rapid permeability and low available water capa- <br />city. Electrical conductivity is less than 2 mmhos/cm and pH <br />ranges from 6.1 to 7.8. <br />Figure 3 shows a soil map of the area surrounding the permit <br />area. Detailed soli map unit descriptions are in the Soil Survey <br />of Adams County, Colorado (USDA, 1974). <br />EXHIBIT E - Reclamation Plan <br />' The existing land use of the permit area is discontinued <br />gravel operations. Prior to the gravel operations the land-use <br />was rangeland and had an extensive cover of native grasses and <br />shrubs such as little bluestem, side-oats grama, switchgrass, <br />' blue grama, sand drop seed, three-awn, needleandthread, sand <br />sagebrush, yucca, snakeweed, and sagewort. <br />' The proposed post-mining land-use is to return the mined <br />land to rangeland or a combination of range pasture and feedlot. <br />To the west of the gravel field the operator has 55-60 acres of <br />' land in hay. He would like to add to this number the 9.8 acres <br />within the proposed permit boundary. Because previous mining <br />activities did not include a reclamation plan, very little <br />topsoil remains for respreading over contoured waste material and <br />' overburden, and consequently, the area may not support an alfalfa <br />hay field without costly cultural amendments; for this reason a <br />mix of dryland grasses is planned for seeding. Because of the <br /> proximity of the hayfields, about 4 acres of the permit area may <br />' be turned into a feedlot and hay stacking area. Reclamation <br /> costs are based on returning the entire area to rangeland, <br /> however. <br />' ' <br />' <br /> Gradi ng. The existing grade i s about 4 <br />-5 above the hay <br /> fields to the west (see figure 1). Once gravel operations are <br />' completed and all gravel deposits have been mined the area will <br />be graded to final contours. This will include a slope gradient <br />of approximately 1':100' in a westerly direction. When final <br />' contours are achieved the stockpiled overburden and topsoil will <br />be re spread over the disked contoured surface. <br />1 <br />9 <br />