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Section 779.21 (a) Continued. <br />• horizons were collected and brought to the laboratory for chemical <br />and physical analysis. The holes sampled i.n July of 1979 were used <br />only to determine mapping unit boundaries and soil thicknesses. <br />As suggested by representatives of the OSM and the MLRB, the <br />accepted methods of soils analysis set forth in Rich<rds (1969) and <br />more recently in the U.S. Department of Agriculture Science and <br />Education Administration group (Sandoval and Power, 1978) were <br />employed for all soil analyses. Also, as suggested by the OSM and <br />the MLRB, the soil samples were tested for pH, conductivity, 5.9R, <br />calcium, sodium, magnesium, EC, ESP, nitrogen, phosphorus and <br />potassium. Specifically excluded from the parameters recommended <br />for analysis were selenium, molybdenum and boron. <br />The results of these data and data collected previously are found <br />in the following discussion. Examination of the Eckman Park data <br />• in Table 71, Energy Fuels Quality Control Laboratory Eckman Park <br />Soil Analysis, reveals that a total of 51 samples representing all <br />of the soils series were analyzed for 19 different parameters. <br />touch of the background soil data which exists for Energy Mines No. <br />1 and 2 was collected prior to the promulgation of 30 CFR 770.21. <br />The areas from which the soil samples were taken have, for the most <br />part, been disturbed and are no lunger capable of being sampled to <br />the extent required by the regulation. Thus, she uata that does <br />exist with respect to these previously disturbed areas is all that <br />is available. This data, then together with data collected in <br />undisturbe3 parts of the permit area, have been used to develop an <br />overall soil survey of the permit area as it existed prior to <br />disturbance by mining. <br />The data collected on the C-20900 lease within the Mine No. 2 area <br />are found in Table 72, Chemical and Physical Properties of Soils on <br />the 20900 Lease Area of t4ine No. 2. Five soil series covering this <br />. site were analyzed for 17 different parameters. <br />779-253 <br />