SU0008707 SSNL - Laserfiche WebLink

Home Browse Search

Septic Permit History in the Vicinity Based on a recent review of septic permits on file at the San Joaquin County Environmental Health Department for nearby properties, most septic systems in the area utilize leach lines and seepage pits-, one permit indicated a system with leach lines only. The septic permits can be found in Appendix 4 of this report. Expected On-Site Maximum Septic Tank Usage Maximum expected septic usage on the Site would be from the existing and any future residential uses. No construction is planned at this time. Septic system design should be based on the On-Site Wastewater Disposal Standards (2003) or other engineering recommendations. Ground Water Information Depth and Gradient Live Oak reviewed ground-water elevation information available from the San Joaquin County Flood Control and Water Conservation District to determine the ground water levels near the Site. Data from spring and fall seasons of 2010 were the most recent available from this source. According to an analysis of these maps (Plates 5 and 6), ground water elevation is six feet above to 17 feet below mean sea level; ground water flows down to the west or west-southwest at a rate of approximately 13 to 17 feet per mile in the vicinity of the Site. Given that the ground elevation of the Site is approximately 100 to 161 feet, the depth to ground water below the Site is estimated to range between 94 to 173 feet, depending on the season- Potential Ground Water Contamination Issues The Soil Suitability Study is not intended to be an investigation into ground--water contamination sources, and no such investigation was conducted. Many sources can contribute to ground water contamination, including leaking underground storage tanks, agricultural activities, dairies, septic systems, and storm water infiltration. Agricultural activities and the use of septic systems in the area are known ground water contamination sources with the potential to impact the Site. On-Site Wells As indicated on the tentative parcel map, one domestic water well exists on the Site (Plate 2). The well is currently out of service. No well permits for the Site were identified at the San Joaquin County Environmental Health Department. LOGE 1107 Page 3