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greater than 2 acres in size. Every attempt was made to correlate <br />this independent mapping project with the SCS soil survey. This <br />• was difficult however, since evaluating the soil resources for top- <br />soil is much more detailed than the Order 3 soil survey performed <br />by the SCS on the proposed permit area (see Appendix I for U.S.D.A. <br />Soil Conservation Service Soil Survey). <br />Soil Sampling <br />A representative profile from each mapping unit (soil series) <br />to be affected by mining was sampled and described. Type locations <br />where these samples were taken are shown on Figure lE. Each pro- <br />file was sampled and described by hori2on to a depth of about 60 <br />inches or refusal. <br />Samples collected by MRC for Pit 1 were analyzed for the <br />following parameters: pH, electrical conductivity, saturation <br />percent, calcium, magnesium and sodium, SAR, organic matter and <br />particle size analysis. Wyoming Fuel Company's sampling program <br />• for Pit 2 included the above parameters with the exception of <br />organic matter, and the very fine sand fraction of particle size <br />analysis. Results of these analyses are presented in Table lE. <br />Field notes were also made by the soil scientist on his <br />impressions from field observation on the suitability of soils <br />for topsoil material. <br />NAPPING UNIT AND PROFILE DESCRIPTIONS <br />Ryan Park verb fine sandy loam, 0 to 6 percent slopes (1) <br />The Ryan Park series are deep soils formed on broad alluvial <br />fans. They occur most extensively in the central portion of the <br />W~ of the NW4 of Section 11. Included in the mapping are small <br />areas of deep Forelle and moderately deep Satanka soils. <br />• <br />-2- <br />