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• 2.04.9(b) <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 />(c) A Soil Classification Map is enclosed as Drawing No. <br />112. The applicant intends to salvage the A and H horizon from <br />each soil unit within the disturbed area. The C horizon, where <br />present, will be salvaged only after confirmation that the SAR <br />value for the horizon is 15 or less. <br />(d) The information presented in Exhibit 7 and discussed <br />above indicates that the C horizon of soil units 1B and 1 are <br />marginal to unsuitable plant growth media because of high sodium <br />adsorption ratio. However by mixing the C horizons with the A and <br />B horizons, the sodium adsorption ratio of the composite soil will <br />be well below the unsuitable limit of 15. <br />(e) A discussion of present and potential productivity <br />of soils is included above in the soil map unit descriptions. <br />• <br />• <br />2.04-27 July 1992 <br />