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Ground Water Information <br /> Depth and Gradient <br /> Live Oak reviewed ground water elevation information available from the San Joaquin <br /> County Flood Control and Water Conservation District to determine the ground water <br /> levels near the Site. Data from spring and fall of 2009 were the most recent available <br /> from this source. According to an analysis of these maps (Plates 5 and 6), ground <br /> water elevation is 0 to 15 feet below mean sea level; ground water flows down to the <br /> northwest at a rate of 7.7 to 14.2 feet per mile in the vicinity of the Site. <br /> Given that the ground elevation of the Site is approximately 90 feet, the depth to water <br /> below the Site is estimated to range between 90 to 105 feet, depending on the season. <br /> Potential Ground Water Contamination Issues <br /> The Soil Suitability Study isC not intended to be an investigation into ground-water <br /> contamination sources, and s- ch investigation was conducted. Many sources can <br /> contribute to ground water contamination, including leaking underground storage tanks, <br /> agricultural activities, dairies, septic systems, and storm water infiltration. Agricultural <br /> activities and the use of septic systems in the area are known ground water <br /> contamination sources with the potential to impact the Site. <br /> n-Site Wells <br /> Nowells exist on the Site. No well permits for the Site were identified at the San/ <br /> Joaquin ounty Environmental Health Department. <br /> Water Sample <br /> (N�o ter sample was collected from the Site. <br /> .Soil Profile and Geologic Information <br /> The Site can be found on the Geologic Map of Califomia, San Jose sheet (Rogers, <br /> 1966). It is depicted within map units of Pleistocene nonmarine deposits and stream <br /> channel deposits (Plate 7). <br /> The surface and near surface soils located at the Site are reported by the USDA Web <br /> Soil Survey to be composed of Madera sandy loam and Madera-Alamo complex, with a <br /> small area of Galt clay north of the canal (Plate 8) (USDA, 2009). The table below <br /> presents some selected properties of these soils: <br /> LOGE1018 Page 3 <br />