Laserfiche WebLink
November 19, 2004 <br /> NOA Project Number: E04107A <br /> 5.1 Soil Boring Locations <br /> Two soil boring were advanced on the Site. One boring was drilled to the�r_ound water depth, and <br /> the other to 34�1 The 3.5 foot soil boring was used for a percolation test. The locati-o-n—oTthe <br /> ground water boring and the percolation test boring, adjacent to each other, can be found on Plate 2. <br /> 5.2 Soil Boring Dimensions <br /> The soil boring was 3.5 feet deep, and was four inches in diameter. The ground water boring was 10 <br /> feet deep and four inches_ in diameter.Both boring were located__mnhin a�roximately five feet of <br /> F ' – <br /> each othe <br /> r. <br /> 5.3 Soil Lithology Observed <br /> Generally, the soil encountered in the boring is dissimilar to the soils indicated in the San Joaquin <br /> County Soil Survey (USDA, 1992). Table 3 present the soil log for the shallow percolation test hole. <br /> Table 3. <br /> Soil Boring Log for P-1. <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-0.3 Brown clayey gravel(FILL) FILL <br /> 0.3-1.0 Brown sandy clay,roots. CL <br /> Brown silty sand with some clay,homogenous, <br /> 1.0-10 no color changes,no mottling,no clacification SM <br /> (groundwater depth 8.5' 1012$104 <br /> F1 5.4 Discussion of Soil Lithology <br /> Close examination of the ground water boring to a depth of 10 feet indicated no mottling,no unusual <br /> Fcoloring or any calcification of the soil. These properties may indicated a level of high historic <br /> ground water within the soil column. Since non of these properties were observed in the 10 foot <br /> deep ground water boring,no conclusions of historic ground water levels can be made. The soils <br /> were quite homogenous. <br /> A visual inspection of the soils from on-site hand-auguring indicates some potential for percolation. <br /> A percolation test is the best method to determine the suitability of the soils. Please see the next <br /> 7 <br />