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Is l x <br /> Expected On-Site Maximum Septic Tank Usage <br /> Maximum expected usage on the Site would be from the food processing facility and the <br /> existing four labor residences. Septic system design should be based on the On-Site <br /> Wastewater Disposal Standards (2003) or other engineering recommendations. <br /> g 9 <br /> Ground Water Information <br /> f Depth and Gradient <br /> F <br /> Live Oak reviewed ground water elevation information available from the San Joaquin <br /> f County Flood Control and Water Conservation District to det mine-the group water <br /> levels near the Site. Data from spring and fall of 2009 were t6 most recent availbble / <br /> from this source. According to an analysis of these maps (kates 5 and 6), gr`nd <br /> water elevation is 8 to 12 feet above mean sea level; ground water flows toward the <br /> north at a rate of seven to ten feet per mile in the vicinity of the Site., <br /> Given that the ground elevation of the Site is approximately 67 feet, the depth to water <br /> below the Site is estimated to be 55 to 59 feet, depending on the time of year. <br /> Potential Ground Water Contamination Issues <br /> The Soil Suitability Study is not intended to be an investigation into ground-water <br /> contamination sources, and no such 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 /> On-Site Wells <br /> One domestic well exists on the Site, as depicted on Plate 2. This well serves the office <br /> building and the four residences. One well repair permit was found at the San Joaquin <br /> County Environmental Health Department. The permit, dated October 2004, is for the <br /> installation of a new submersible pump at the domestic well. The permit is included in <br /> Appendix 4. <br /> Water Sample <br /> er was collected from the domestic well on the Site on March 11, 2010 by <br /> Dan Costa a property owner. The sample was analyzed for Nitrate and <br /> dibrom.och oropropane (DBCP) per San Joaquin County Environmental Health) <br /> epartment policy. <br /> LOGE1016 Page 3 <br />