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February 15, 2006 <br /> NOA Project Number: E06006A <br /> = 5.1 Soil Boring Locations <br /> One soil boring was advanced on the Site; the boring was excavated to a depth of 3.28 feet. The soil <br /> boring was used later for a percolation test;the location of the boring is indicated on Plate 1.: <br /> 5.2 Soil Boring Dimensions <br /> The soil boring was 3.28 feet deep,as noted above,and was four inches in diameter. <br /> 5.3 Soil Lithology Observed <br /> Generali the soil encountered in the borings is similar to the soils reported by the San Joaquin <br /> - y . for the soil <br /> the soil to <br /> `County Sail Survey for the area {USDA,.1992). The table below presents g _ <br /> boring. <br /> Soil Boring Lo <br /> Unified Soil Classification <br /> } Depth Interval(ft) Soil Type <br /> 0-3.5 Brown Eine sand_with some silt _ SP <br /> 5.4 Discussion of Soil Lithology <br /> A visual inspection of the shallow soils from on-site drilling indicates good 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 /> TEST INFORMATION <br /> 6.0 PERCOLATION <br /> 6.1 Percolation Test Locations <br /> A site map indicating the location of the percolation test hole is included as Plate 1 of this report. <br /> 6.2 -Number of Percolation Tests <br /> One shallow percolation test was conducted on the Site. <br /> 6.3 Boring Preparation and Presaturation <br /> The soil boring on the parcel was advanced on the Site with a four inch diameter hand auger on <br /> January 31,2006. <br /> 7 <br />