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• Table 1. Selected Properties of On-Site Soils (USDA, 1992) <br /> Soil Name Depth Unified Soil Salinity Soil Perme- Septic tank <br /> and Map (in) Classification mmhos/cm Reaction ability absorption <br /> Symbol pH (in/hr) fields <br /> Galt clay, 0-25 Clay; CL, CH <2 6.6-7.3 0.06-0.2 Severe: <br /> 0-2% 25-34 Clay, silty clay; CL, CH <2 6.6-8.4 0.06-0.2 cemented <br /> slopes, 160 34-60 Cemented --- --- --- pan, peres <br /> slowly. <br /> Jacktone 0-22 Clay; CL, CH <2 6.6-8.4 0.06-0.2 Severe: <br /> clay, 0-2% 22-34 Clay loam, clay, silty <2 7.9-9.0 0.06-0.2 cemented <br /> slopes, 180 clay; CL, CH pan, peres <br /> 34-37 Indurated --- --- --- slowly <br /> 37-46 Loam, clay loam; CL-ML, <2 7.9-9.0 0.2-0.6 <br /> CL <br /> 46-60 Cemented --- --- --- <br /> Stockton 0-29: Clay; CL, CH <2 7.4-8.4 0.14-0.16 Severe: <br /> clay, 0-2% 29-37: Clay, silty clay; CL, CH <2 7.4-8.4 0.14-0.16 peres slowly <br /> slopes, 250. 37-42: Clay loam, silty clay <2 7.4-8.4 0.14-0.17 <br /> loam; CL <br /> 42-60: Cemented --- --- --- <br /> Note: The table descriptions do not necessarily reflect site-specific soil properties. See description of the map unit for <br /> composition and behavior characteristics of the map unit. <br /> • Soil Borings <br /> On March 30, 2017, Live Oak excavated a shallow soil boring on each proposed parcel <br /> of the Site for the purpose of conducting percolation tests. The borings were four <br /> inches in diameter, 3.41, 3.45, 3.46, and 3.50 feet deep, and were excavated by hand <br /> auger (Table 2). The locations of the borings are indicated on Plate 10. <br /> The soil in the borings was similar to, though sandier than, that described by the Soil <br /> Survey. Fat clay was encountered to a depth of approximately 2.5 feet below ground <br /> surface (bgs), followed by sandy clay to an approximate depth of 3.3 feet, followed by <br /> sand with clay to the full depth of each hole. The soil log is presented on Plate 11. <br /> Discussion of Soil Lithology <br /> Based on the soil observed in the borings, there appears to be good potential for <br /> percolation in the shallow soil zone at the test locations. Sandy soils generally have a <br /> much greater potential for percolation than fine-grained or cemented soils. However, a <br /> percolation test is the only accepted method for determining the suitability of the soils <br /> for a septic disposal area. Percolation test results are discussed in the following <br /> section. <br /> • Percolation Test <br /> LOGE 1702 Page 6 <br />