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January 3, 2006 <br /> NOA Project Number: E05164A <br /> 5.1 Soil Boring Locations <br /> Two soil bonngs.were advanced on the Site,both borings were to a depth of three feet. The soil <br /> borings were used later for percolation test holes; the locations of the borings are indicated in Plate <br /> 1. <br /> 5.2 Soil Boring Dimensions <br /> The soil borings were three-feet deep, as noted above, and were four inches in diameter. <br /> 5.3 Soil Lithology Observed. <br /> Generally, the soil encountered in the borings is similar to the soils reported by the San Joaquin <br /> County Soil Survey for the area (USDA,1992). The table below presents the soil log for the two <br /> soil borings. <br /> Soil Boring Lo <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-3 Medium brown,moist,coarse medium sand with SM <br /> silt <br /> 5.4 Discussion of Soil Lith olo <br /> gy <br /> A visual inspection of the shallow soils from on-site drilling indicates potential for satisfactory <br /> percolation. A percolation test is the best method to determine the suitability of the soils. Please <br /> see the next section for percolation test results. Generally speaking, sandy soils have much greater <br /> potential for percolation than fine-grained soils. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 6.1 Percolation Test Locations <br /> A site map indicating 1 idicatithe locations of the percolation test holes is included as Plate of this report. <br /> 6.2 Number of Percolation Tests <br /> One shallow percolation test was conducted on each proposed parcel of the Site, for a total of two <br /> shallow percolation tests. <br /> 7 <br /> a-M6 - <br />