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Soil Map Units i Non-Irrigated Normal Approximate Map Land Productivity Removal S 01 Unit Name Slope % Capability Dry # ac Depth * (in) 151 Tailings dump - - - 0 172 Hicksville gravelly ravell loam 0-2 IVw 3,200 200 13 185 Kaseberg fine sandy loam 2-15 VIe 2,000 11 10 186 Kaseberg loam 15-30 We 2,000 10 200 Montpellier-Cometa complex 5-8 IVe 2,500 11 202 Pardee gravelly loam 0-3 VIS 2,000 9 203 Pardee cobbly loam 3-15 VIe 2,000 9 t 207 Pentz sandy loam 15-50 VIe 2,200 10 208 Pentz cobbly sandy loam 5-8 VIe 2,000 10 209 Pentz-Bellota complex 2-15 VIe 2,200 10 i 214 Gravel pit - - - - j 220 Redding gravelly loam 2--8 IVe 2,000 16 229 Rocklin fine sandy loam 0-2 IVs - 15 �r *Factors such as coarse fragment content will govern actual removal depth. d Generally, a volumetric coarse fragment content of 20% or more will nullify removal. The topsoil that is removed by scraper will either be hauled F to areas undergoing concurrent reclamation or to stockpile sites. The current soil stockpile is depicted on Exhibit 1, Future stockpile sites will likely either be within or adja- F cent to pits. Siting considerations will include impact on biological resources such as vegetation and the susceptibili- ty to erosive forces. The seed bank in the topsoil and immigrant seed should develop into a cover for erosion con- trol on topsoil stockpiles during the growing season. If wind or water erosion problems appear, the topsoil stockpile can be protected by methods which include application of r fibrous erosion control blankets, bale dikes, mulching, wind barrier fences, or supplemental seeding. 24. Describe methods, sequence, and timing for bringing reclama-, tion of the land to its end state. Indicate on the site plan, or on diagrams as necessary. t The soil salvaged from the project area will be respread at generally uniform depths on areas to be reclaimed. The limited volume of topsoil presently stockpiled will be utilized, along with future removal volumes, to meet re- spreading needs. Roughly 650, 000 cubic yards of topsoil are calculated to be available in the excavation area. This will provide for a redistribution depth of about 8 inches, assum- ing a slight temporary compaction of 15 percent, on the excavation area plus the plant site. The actual redistribu- tion depth may vary from this, depending on. factors including Fx the actual excavation acreage and soil quality. i KRC Aggregate, Inc. - 8 - April 1, 1994