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LSeptember 9,2005 <br /> NOA Project Number: E0511ZA <br /> L5.1 Soil Boring Locations <br /> Two soil borings were drilled to a depth of approximately three and a half feet on the Site. The soil <br /> Lborings were later used as percolation test holes, see Plate 1 for the boring locations. <br /> 5.2 Soil Boring Dimensions <br /> LThe soil borings were approximately three and a half feet deep,as noted above, and were four inches <br /> in diameter. <br /> I <br /> 5.3 Soil Lithology Observed <br /> L Generally, the soil encountered in the borings is similar to the soil reported by the San Joaquin <br /> County Soil Survey for the area (USDA, 1992). Tables 4 and 5 present the soil logs for the borings <br /> on the subject property. <br /> L Table 4. <br /> Soil Boring Log for P-C. <br /> LDepth Interval(ft) Soil Type Unified Soil Classification <br /> 0-3 Dark Brown,moist,dawith some sand Cl. <br /> r Table 5. <br /> Soil Boring Log for P-D. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-3 Medium brown,slightly dry,sandy clay,medium CL <br /> grain <br /> i 5.4 Discussion of Soil Lithology <br /> L <br /> A visual inspection of the shallow soils from on-site drilling indicates some potential for satisfactory <br /> percolation. A percolation test is the best method to determine the suitability of the soils for a septic <br /> disposal area. Please see the next section for percolation test results. Generally speaking,coarser <br /> grained soils have much greater potential for percolation than fine-grained soils. <br /> L6.0 PERCOLATION TEST INFORMATION <br /> L6.1 Percolation Test Locations <br /> LA site map indicating the locations of the percolation test hole is included as Plate 1 of this report. <br /> L 8 '-'44 <br /> L <br />