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Mr.Sandi De Jong <br /> September 25,2003 <br /> Page 7 <br /> fertilizers are most likely the main source of nitrates. <br /> Based on our experience, the potential nitrate impact to ground water is probably low near the <br /> site due to the low permeable surface soils, alternating low permeable clay layers, and the <br /> relatively deep depth to ground water. Other parts of the county containing sandy soils and <br /> shallow ground water experience nitrate impacts. <br /> 4.4 Water Sample Location <br /> No active water wells exist on the subject Site; therefore, no ground water sample was collected <br /> as part of this project. <br /> S.Sample Collection,Handling, and Transportation <br /> No active water wells exist on the subject Site; therefore, no ground water sample was collected <br /> as part of this project. <br /> r <br /> 4.6*ater Sample Analytical Results <br /> No active water wells exist on the subject Site therefore no ground water sample was collected as <br /> part of this project. <br /> 5.0 SOIL PROFILE AND GEOLOGIC INFORMATION <br /> 5.1 Geology <br /> The surface geology at the Site is shown Marchand and Atwater, and is composed of Riverbank <br /> Formation. Foothill-derived alluvial sand and silt; contains abundant volcanic detritus (San <br /> Joaquin Soils,weak variant). <br /> 5.2 Soil Properties in the Vicinity <br /> The surface and near surface soils located at Site are reported to be composed of San Joaquin <br /> sandy loam, 0 to 2 percent slopes (Soil no. 240)(Plate 7) (USDA, 1992). Table 3 presents some <br /> selected properties of this soil. <br /> pERSO� <br /> j W <br /> O � <br /> �'rSOG\ <br />