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L <br /> September 14, 2006 <br /> NOA Project Number: E06095A <br /> L5.2 Soil Boring Dimensions <br /> The soil borings were approximately three and a half or 14.5 and 17.5 feet deep,as noted above,and <br /> were four inches in diameter. <br /> 5.3 Soil Lithology Observed <br /> Generally, 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 4 presents a soil log for the 17.5 foot deep soil <br /> boring. Conditions were comparable in the shallow holes. <br /> Table 4. <br /> Soil Boring Log. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-3 Dark brown silty clay CL <br /> 3-12 Reddish brown moist sandy silt SM <br /> 12-17.5 Reddish brown silty sand SM <br /> 5.4 Discussion of Soil Lithology <br /> LA visual inspection of the shallow and deep soils from on-site drilling indicates potential for <br /> percolation because of both the coarse grained nature of the soils. A percolation test is the best <br /> method to determine the suitability of the soils. Please see the next section for percolation test <br /> results. Generally speaking, coarser grained soils have much greater potential for percolation than <br /> fine-grained or cemented soils. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 6.1 Percolation Test Locations <br /> L A site map indicating the locations of the percolation test holes is included as Plate I in the appendix <br /> of this report. <br /> 6.2 Number of Percolation Tests <br /> L <br /> One shallow and one deep percolation tests were conducted on each parcel, for a total two shallow <br /> Land two deep percolation tests on the subject property. <br /> L <br /> 7 <br /> L '-'44 <br /> L <br />