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• The results of soils data collection is found in the following discussion. The data collected <br />within the mine plan area are found in Table 9, Soils Analysis. A total of 24 samples <br />covering the mine plan area were analyzed for 16 different parameters. The exact soil <br />sampling locations for all the soi]s found within the mine plan area are shown on the Soils <br />Map (Map 4). <br />Interpretation of Soils Analysis The following conclusions are based upon the examination <br />of soils data collected during 1980. The data are arranged according to their relative <br />suitability for topsoil as described in the Wyoming DEQ Suitability Ratings for Soil in <br />Table 10, Suitability Ratings for Soils as Sources of Topsoil Material. In addition, the data <br />are compared with established guidelines for normal plant growth and examined for any <br />potential toxicity levels. Twenty-four samples were analyzed for each of the following <br />perameters. <br />pI3 The range of pH values was 7.1 to 8.3. All pH values within the mine plan area fall <br />within the "good" range indicated in Table 10, Suitability Ratings for Soils as Sources of <br />Topsoil Material. The data indicate there are no pH problems. <br />Electrical Conductiviri In the permit area, electrical conductivity (EC) for both the topsoil <br />and subsoil ranged from 0.16 to 0.75 mmhos/cm. No samples exceeded the value of 4 <br />mmhos/cm as shown in Table 10, Suitability Ratings for Soils as Sources of Topsoil Material. <br />The topsoil suitability guidelines recommended by the Wyoming DEQ indicate that all <br />• topsoil in the mine plan area is considered "good" with respect to EC. <br />Saturation Percentage Values for saturation percentage from the permit area ranged from <br />31 to 75 percent. No samples were below 25 or above 80 as recommended by Wyoming <br />DEQ (Table 10, Suitability Ratings for Soils as Sources of Topsoil Material). Soils encoun- <br />tered in the permit area are considered "good" with respect to saturation percentage. <br />Sodium Absorption Ratio In the permit area, the sodium absorption ratio (SAR) ranged <br />from .1 to 1.8. None of the samples exceeded the recommended value of 6 proposed by the <br />Wyoming DEQ. According to the topsoil suitability guidelines established by Wyoming, soils <br />in the permit area are considered "good" with respect to SAR. <br />Selenium Examination of data from Table 9, Soils Analysis, indicates that all selenium <br />values were less than 0.05 ppm. Using the Wyoming DEQ Standards for soil materials, soils <br />in the permit area are rated as "good" with respect to selenium. With such low selenium <br />levels, no potential revegetation problems were expected. <br />Boron In the permit area, boron values range from 0.61 to 1.36 ppm. Using the Wyoming <br />DEQ Standards, soils are rated as "good" with respect to boron. <br />Particle Size Topsoil sampled within permit area is classed as either sandy loam or loamy <br />sand. Using the Wyoming DEQ criteria, soils in the mine plan area would be classified as <br />• "good" with respect to texture. <br />2.04-61 <br />