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F! February 22, 2006 <br /> NOA Project Number: E06010A <br /> J5.1 Soil Boring Locations <br /> Two soil borings were advanced on the Site; the borings were excavated to depths of 3.08 and 24.19 <br /> feet. The soil borings were used later for percolation tests; the locations of the borings are indicated <br /> on Plate 1. <br /> /5.2 Soil Boring Dimensions <br /> The soil borings were 3.08 and 24.19 feet deep, as noted above, and were eight inches in diameter. <br /> /5.3 Soil Lithology Observed <br /> l Generally, the soil encountered in the borings was similar to the soils reported by the San Joaquin <br /> r <br /> County Soil Survey for the area (USDA, 1992). The table below presents the log for the soil <br /> borings. <br /> Soil Boring Lo shallow and dee <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-4.0 Reddish brown fine to medium sandy clay SC <br /> 4A-12.5 Brown fine to coarse sand SP <br /> 12.5-19.5 Brown fine sandy silt SM <br /> 19.5-25.0own sil ,fine sand SM <br /> /fir �i��-rte <br /> /5.4 Discussion of Soil Lithology <br /> A visual inspection of the soils from on-site drilling indicates good potential for satisfactory <br /> percolation in the deep soil zone. A percolation test is the best method to determine the suitability <br /> of the soils. Please see the next section for percolation test results. Generally speaking, sandy soils <br /> have much greater potential for percolation than fine-grained soils. <br /> FI <br /> ri <br /> a 8 <br />