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L <br /> LFebruary 24,2006 <br /> NOA Project Number: E05139B <br /> diameter. <br /> v <br /> 5.3 Soil Lithology Observed <br /> LGenerally, the soil encountered in the boring is similar to the soils reported by the San Joaquin <br /> County Soil Survey for the area (USDA, 1992). Table 3 presents a soil log for the 25 foot deep soil <br /> borings. Conditions were comparable in the shallow holes. <br /> Table 3. <br /> Soil Boring Log. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-6 Brown,moist sandy clay SM <br /> 6-18 Brown saturated fine clayey sand SC <br /> I8-25 Brown,moist fine sand SM <br /> L <br /> 5.4 Discussion of Soil Lithology <br /> I <br /> L A visual inspection of the shallow and deep soils from on-site drilling indicates some potential for <br /> percolation because of the sandy nature of the soils.A percolation test is the best method to <br /> Ldetermine the suitability of the soils. Please see the next section for percolation test results. <br /> L Generally speaking,coarser grained soils have much greater potential for percolation than fine- <br /> grained or cemented soils. <br /> bft <br /> 6.0 PERCOLATION TEST INFORMATION <br /> L6.1 Percolation Test Locations <br /> A site map indicating the locations of the percolation test holes is included ads Plate 1 in the appendix <br /> L of this report <br /> L6.2 Number of Percolation Tests <br /> One Ahallolw and one deep percolation test was conducted on each parcel, for a total f two s ]low <br /> two&ep percolation tests on the subject property. <br /> L �- <br /> 6.3 Boring Preparation and Presaturation <br /> LA total of two shallow and two deep soil borings were advanced on the Site with an all terrain <br /> vehicle-mounted deep tock-augur rig on January 30, 2006. <br /> L <br />