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Evaluation of Soils for Reclamation Potential. The soils and parent materials on the study area <br />were rated for suitability based on criteria presented in Table 9-2, Criteria for Evaluating Soil <br />Suitability. 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, conductivity, saturation percent, soil texture, sodium adsorption ratio, <br />calcium carbonate percent, acid base potential, and rock fragment percent. <br />Chemical constituents including boron, copper, zinc, molybdenum, and selenium were also <br />evaluated. Secondary suitability criteria, including depth to bedrock, depth to ground water, <br />consistence, organic matter content, and slope steepness were also utilized to determine <br />topsoil salvage depths. <br />Topsoil salvage depths were based on average depths to the suspect parameter or average <br />profile depths lif the entire profile was suitable) across the entire study area based on <br />numerous soil profile descriptions obtained for each soil type. <br />Results/Discussion <br />Soil Survey Maps. The distribution of each map unit on the Seneca II-W/II-W South study area <br />is provided on 1:4800 11" = 400') scale topographic base maps (dated 7/11/71 for the tie <br />across haul road corridor, 7/1/89 for II-W, and 1998 for the II-W South Extension Areal <br />accompanying this report. The maps are presented as Exhibit 9-1, Sheets 1 oT 2 and 2 of 2; <br />Exhibit 9-2; and Exhibit 9-3. Map unit, soil survey and permit boundaries, soil description <br />locations, topsoil depth verification sites, and soil sample/description locations for the study <br />area are also shown on the base maps. <br />Fifty-nine typifying soil pedons (soil profile description and sample locations), 36 topsoil depth <br />verification sites, and 131 soil profile description sites, are denoted on Exhibits 9-1, 9-2, and <br />9-3. The legend on the maps includes all map unit symbols, map unit names, and <br />recommended soil salvage depths for all map units which occur in the projected disturbance <br />area. Soil sample locations for each separate field survey are provided in Appendix 9-1 . <br />Soil Horizon Nomenclature. Revised soil series profile descriptions were available from NRCS <br />for all soil series and soil series variants mapped on the study area. These revised descriptions <br />incorporated the new soil horizon nomenclature. This nomenclature was used to revise soil <br />profile descriptions completed during previous surveys and used during the SCC 1990 soil <br />survey. <br />11 <br />U <br />15 Revised 9/98 <br />