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2.04.9 <br />This unit is well suited to homesite development. If the <br />Paradox soil is used for septic tank absorption fields, the <br />limitation of moderate permeability can be overcome by increasing <br />the size of the absorption field. <br />This mapping unit is in capability subclasses IIe, irrigated <br />and VIe, non-irrigated It is in Semidesert sandy loam #326 range <br />site. <br />(b) During November 1990 fifteen soil pits were exca- <br />vated within the permit area to determine soil depth and to obtain <br />samples for analysis. Four pits were excavated for soil units 1, <br />2 and 3 and three pits were excavated for soil unit 1B. During May <br />1991 four soil pits were excavated in soil unit 4 to determine soil <br />depth and to obtain samples for analysis. The A and B horizons and <br />C horizon where present, were separately analyzed from one pit per <br />soil unit. A composite A horizon and a composite B horizon were <br />also analyzed for each soil unit. A soils report and the results <br />of the soil analysis are presented in Exhibit 7. <br />The pH of the soils sampled during November 1990 <br />ranged from 7.6 to 8.5 all within an acceptable range. The <br />electrical conductivity of the soils which ranged from 0.28 to 3.45 <br />• are all in the low range and indicate little salinity damage may be <br />expected. The sodium adsorption ratios which range from 4.02 to <br />16.42 are medium, with the one sample showing in the high range. <br />This sample is from the C horizon, 16"-36", of soil unit 1B. <br />Nine of the November 1990 soil samples were analyzed <br />for Boron and Selenium. The selenium concentration in the samples <br />were all less than 0.02 ppm which is much less than the upper <br />acceptable limit of 0.10 ppm. The Boron concentration in the <br />samples ranged from 0.023 to 1.80 ppm which is much less that the <br />upper acceptable limit of 5.0 ppm. No problems are anticipated for <br />the soils with respect to Boron or Selenium. <br />During June 1992 sixteen soil pits were excavated <br />within the area to be disturbed by mining area number 3 to <br />determine soil depth and to obtain samples for analysis. Four pits <br />were excavated in soil units 1, 1B, 2 and 3. The A, B & C horizons <br />from each soil unit were composited and analyzed. A soils report <br />and the results of the soil analysis are presented in Exhibit 7. <br />• <br />2.04-26 July 1992 <br />