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• � VIIIIIIIIIIIIIIN !� <br />t <br />The pH of the soils sampled during June 1992 ranged <br />from 7.1 to 8.6 all within an acceptable range. The electrical <br />conductivity of the soils which ranged from 0.36 to 1.49 are all in <br />the low range and indicate little salinity damage may be expected. <br />The sodium adsorption ratios which range from 4.08 to 16.66 are <br />medium, with the one sample showing in the high range. This sample <br />is from the C horizon of soil unit 1. <br />2.04.9(b) <br />The boron levels in the soils sampled during June <br />1992 ranged from 0.50 to 3.34 ppm all less than the upper <br />acceptable limit of 5.0 ppm. The selenium levels in the soils <br />sampled during June 1992 ranged from <0.02 to 0.05 ppm all less <br />than the upper acceptable limit of 0.10 ppm. <br />(c) A Soil Classification Map is enclosed as Drawing No. <br />112. The applicant intends to salvage the A and B horizon from <br />each soil unit within the disturbed area of Mining Area No. 1 and <br />2. The C horizon, where present in Mining Area No. 1 and No. 2, <br />will be salvaged only after confirmation that the SAR value for the <br />horizon is 15 or less. <br />(d) The information presented in Exhibit 7 and discussed <br />above indicates that the C horizon in soil map unit 1, Mining Area <br />® 3 is unsuitable plant growth media because of high sodium <br />adsorption ratio. The C horizon from soil map unit 1 in Mining <br />Area No. 3 will not be salvaged. <br />(e) A discussion of present and potential productivity <br />of soils is included above in the soil map unit descriptions. <br />2.04 -27 <br />October 1992 <br />