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Baseline Technical Report <br /> ARCADIS Report for Soils and Biological <br /> Resources, MLE2 Project Area <br /> Given the factors above and the data from field surveys, an average growth medium <br /> salvage depth was determined for each mapped soil unit (Table 2-3). Suitability <br /> ratings are based on soil interpretation records provided by the NRCS and the <br /> suitability guidelines in Table 2-4. <br /> Four suitability ratings (Good, Fair, Poor, and Unsuitable) were used to determine the <br /> salvage depths of each mapping unit. Limiting factors were noted for each <br /> component of a soil series or phase. Coarse fragment content is primarily <br /> responsible for the suitability ratings in Table 2-3. Soils with more than 35 percent <br /> coarse fragments are rated unsuitable for use as growth medium. <br /> Estimates of salvageable soil growth medium were calculated based on suitability <br /> ratings, average growth medium depths, and soil distributions presented in Tables 2- <br /> 2, 2-3, and 2-4. Soil components with average growth medium depths of less than 6 <br /> inches were not included in the total amount of salvageable material due to <br /> complications associated with salvaging shallow soils with heavy equipment. Good <br /> quality soil growth medium is limited to the extents of soil map unit CQ. Soil map <br /> units EB, RI, and Sz contain fair quality soil growth medium. Approximately 1.13 <br /> million cubic feet (26 acre-feet) of good and approximately 8.97 million cubic feet <br /> (206 acre-feet) of fair quality soil growth medium would be potentially salvageable. <br /> These estimates suggest that all areas within the MLE2 project area could be <br /> potentially reclaimed with approximately 6 inches of secondary growth medium. <br /> CCV Baseline Soils Biology Resource Report(11-17-11).doc 10 <br />