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n 0 <br /> Table 1. Selected Properties of On-Site Soils (USDA, 1992 <br /> ) <br /> Soil Name Depth Unified Soil Salinity Soil Perme- Septic tank <br /> and Map (in) Reaction ability absorption <br /> Symbol Classification mmhoslcm H <br /> p (in/hr) fields <br /> Galt clay, 0-25 Clay; CL, CH <2 6.6-7.3 0.06 -0.2 Severe: <br /> 160 25-34 Clay, silty clay,CL, CH <2 6.6-8.4 0.06 -0.2 cemented <br /> 34-60 Cemented --- — --- pan, peres <br /> slowly. <br /> Madera 0-19: Sandy loam; SM <2 5.6- 7.3 2.0-6.0 Severe: <br /> sandy loam, 19-23: Sandy clay loam; SC <2 6.1 - 7.3 0.2- 0.6 cemented <br /> 0-2% 23-29: Clay, clay loam; CL, CH, <2 6.6-8.4 <0.06 pan, peres <br /> slopes, 193 SC slowly. <br /> 29-60: Indurated <2 --- --- <br /> Madera- Madera <br /> Alamo 0-10 Sandy loam, SM <2 5.6-7.3 2.0-6.0 Severe: <br /> complex, 10-20 Clay, day loam, CL, SC <2 6-6-8.4 <0.06 cemented <br /> leveled, 20-60 Indurated <2 --- --- pan, peres <br /> 0_1% slowly. <br /> slopes, 195 Alamo <br /> 0-12 Sandy loam, SM <2 6.1 - 7.3 0.6-2.0 <br /> 12-25 Clay, CH <2 6.1 -7.8 <0.06 <br /> 25-34 Clay, CH <2 6.6-8.4 <0.06 <br /> 34-60 Indurated -- <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> *See description of the map unit for composition and behavior characteristics of the map unit. <br /> Solt Borings <br /> On August 16, 2010, Live Oak excavated one shallow soil boring on each proposed <br /> parcel the Site for the purpose of conducting percolation tests. The borings were four <br /> inches in diameter, 3.20 and 3.35 feet deep, and were excavated by hand auger. The <br /> boring locations are indicated on Plate 2. <br /> The soil in the borings was similar to that described by the Soil Survey; sandy clay was <br /> observed from the surface to two feet depth, followed by sandy silt to the maximum <br /> depth of the borings (3.35 feet). The log for the soil borings is presented in Plate 9. <br /> Discussion of Soil Lithology <br /> Based on the soils observed in the borings, there appears to be moderate potential for <br /> percolation. Sandy soils generally have a much greater potential for percolation than <br /> fine-grained or cemented soils. However, a percolation test is the only accepted <br /> method for determining the suitability of the soils for a septic disposal area. Percolation <br /> test results are discussed in the following section. <br /> LOGE1018 page 4 <br />