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• CONCLUSIONS AND RECOMMENDATIONS <br /> In summary, the soil conditions in the percolation test locations appear to be suitable for <br /> use with on-site septic systems. Satisfactory soil percolation rates of 2.6 min/in (P1) <br /> and 5.2 min/in (P2) were observed in the test locations. <br /> Live Oak excavated a soil boring to ten feet below ground surface near percolation test <br /> boring P2 for the purpose of determining the depth to ground water; no ground water <br /> was encountered. Additionally, Live Oak measured the depth to water within the <br /> domestic well; water was encountered at 17.4 feet below ground surface. <br /> A water sample was collected from the main domestic water well. Nitrate was detected <br /> in the sample at a concentration of 0.2 mg/L-N, well below the MCL of 10 mg/L-N. <br /> DBCP was not detected in the sample. <br /> We believe the Site suitable for the use of septic systems utilizing leach lines or filter <br /> beds in accordance with the requirements of the San Joaquin County Environmental <br /> Health Department. On Parcel 1, based on the percolation rate of 2.6 min/in, the San <br /> Joaquin County Environmental Health Department will require either a 20-foot <br /> separation from the bottom of the dispersal system to ground water, or mitigation of the <br /> rapid percolation rate by septic system design or enhancement. On Parcel 2, based on <br /> • the percolation rate of 5.2 min/in, the San Joaquin County Environmental Health <br /> Department will require an eight-foot separation from the bottom of the dispersal system <br /> to ground water. The septic system at the secondary house is currently being <br /> relocated; no other new construction is anticipated. <br /> • <br /> LOGE 1801 Page 8 <br />