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11. Evaluation of Soils for Reclamation Potential <br />The soils and parent materials on the study area were rated for suitability based on criteria <br />presented in Table 2.04.9 -2, Criteria for Evaluating Soil Suitability. These suitability criteria <br />were approved by GBMG in the Permit Amendment for the expansion west of 2700 <br />Road. Recommended topsoil salvage depths were generated for each sampled pedon and <br />each component of a mapping unit. Salvage depths were determined following a detailed <br />evaluation of PH, electrical conductivity, saturation percent, soil texture, Sodium Adsorption <br />Ratio, calcium carbonate percent, and coarse fragment percent. Threshold suitability criteria <br />shown in Table 2.04.9 -2 were modified in conjunction with the NRCS as part of TR -57 in 2008. <br />Topsoil salvage depths were based on average depths to the suspect parameter or average <br />profile depths (if the entire profile was suitable) across the study area based on numerous soil <br />profile descriptions obtained for each soil type. <br />(Revised October 09) 2.04.9 -22 <br />