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the cadge mining area and reclamation sites 87-uL-1 and 88-wC-1 located in the wolf Lreek <br />mining area. The location of each soil pit is shown on Exhibit 91-2. Coordinate and <br />elevation data, provided by the Seneca Mine Engineering DepartmenC, and field description <br />data are on file at Peabody's western Division office in Flagstaff, Arizona. Soil pits <br />were excavated with a backhoe to a depth of 60 to 84 inches to expose all soil and upper <br />spoil horizons- <br />., <br />Soil horizons were identified and differentiated by color, texture, root density, <br />consistence, structure, and rock fragment content. The individual horizons were described <br />and separately sampled. Spoil material was described and sampled to profile depths which <br />exceeded the plant rooting zone (60 to 84 inches). Field sail properties, listed on <br />USDA-SCS 232 field sheets, were described by using guidelines presented in Soil Taxonomy <br />(USDA-SCS, 1975) and Soil Survey Manual (USDA-SCS, 1951 and 1962) including revised Chapter <br />4 - Examination and Description of Soils in the Field (USDA-SCS, June 1981). <br /> The soil and spoil material was placed in clean, labeled, 4-mil thick polyethylene storage <br /> bags and was kept coot and dry to limit chemical changes. The samples were shipped to <br /> Inter-Mou ntain Laboratory in Sheridan, Wyoming for analysis. The soil analysis methods are <br />• listed in Table 91.1. Avai lable uater•holding capacity was determined by using methods <br /> described by SCS (1978), SCS (1981), Olson (1981), and the Soil Committee (1984). <br />Laboratory results for soil and spoil samples collected from the cadge and wolf Creek <br />reclamation sites are presented in Attachment 91.1. The cadge soil has a slightly acid to <br />neutral reaction, very low to low salinity and extremely low SAR (sodium adsorption ratio). <br />These conditions are ideal at the reclaimed surface for proper seed germination, seedling <br />emergence/establishment and nutrient availability (Barrett et al., 1980). Calcium is the <br />dominant cation in the soil. The wedge spoil has a neutral reaction, low salinity and very <br />low SAR. Magnesium is either the dominant cation or codomi nant with calcium in the spoil. <br />Acid base potential was very suitable in the soil and spoil with respective mean values of <br />4.8 and 43.3 tons calcium carbonate per acre furrow slice. Fertilizer levels considered <br />adequate to obtain goad plant establishment, site suitability, floristic diversity and <br />moderate productivity are listed in Table 91.2. These fertility levels are recommended for <br />naCive and improved range grasses. The cadge soil has an excellent fertility status for <br />soil reaction, [extur e, and organic matter. Nitrate and ammonium levels are typically low <br />to moderate at all seven sites. However, a nitrogen fertilizer application is not <br />recommended because organic matter levels are high (Barrett et al., 1980). Phosphorus <br />3 <br />