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f Table 4.6. 1 Soil Map Units Non-Irrigated Normal Approximate Map Land Productivity Removal Symbol Unit Name Slope % Capability _(Dry #/ac) ' Depth *_ (in) 151 Tailings dump - - - 0 172 Hicksville gravelly loam 0-2 IVw 3,200 13 185 Kaseberg fine sandy loam 2-15 VIe 2,000 10 7 186 Kaseberg loam 15-30 Vie 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 ,r 207 Pentz sandy loam 15-50 VIe 2,200 10 208 Pentz cobbly Bandy loam 5-8 VIe 2,000 10 209 Pentz-Bellota complex 2-15 VIe 2,200 10 214 Gravel pit -- - - -- fir 220 Redding gravelly loam 2-8 IVe 2,000 16 229 Rocklin fine sandy loam 0-2 IVs 15 { *Factors such as coarse fragment content will govern actual removal depth. Generally, a volumetric coarse fragment content of 20% or more will. nullify removal. r The topsoil available within the excavation area is presented T--; in Table 4. 6.2 . The Soil Survey of San Joaquin County (SCS, 1992) was used to determine the soil map units within the excava- tion area. Available topsoil depths generally represent A hori- zon materials, those considered optimal for vegetation establish- ment and growth. The estimated average depth of topsoil avail- able in the excavation area is 0. 8 feet. Table 4.6.2 Available Topsoil - Area Within Excavation Boundary - Map Symbol Unit Name Acreage Depth (ft) Volume__(Yd3? 185 Kaseberg fine sandy loam 7.3 0.83 9,775 200 Montpellier-Cometa complex 122.8 0.92 182,268 r 202 Pardee gravelly loam 265.0 0.75 320,650 203 Pardee cobbly loam 49.0 0.75 59,290 207 Pentz sandy loam 8.4 0.83 11,248 208 Pentz cobbly sandy loam 0.4 0.83 536 214 Gravel pit 25.1 0.0 0 220 Redding gravelly loam 33.6 1.33 72,097 W Water 4.4 0.0 0 516.0 655,864 y F; { KRC Aggregate, Inc. - 5 - April 1, 1994