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I 0 <br /> July 2!9, 2 q3 <br /> Job Number:LG03-222 <br /> Page 7 ± <br /> Table 5. I <br /> ' <br /> Summary.of'Percolation Tests. <br /> Test No., Percolation Percolation Rate. Comment . <br /> Date Tested Test Depth(ft) (aiinutes/inch) <br /> P-1, 7-8-03 3 25 Achieved satisfactory percolation rate. <br /> P-2,7-8-03 3 10.4 . Achieved satisfactory.percolation rate. <br /> P-3,7-8-03 . 3. -5 Achieved satisfa ctory percolation rate, <br /> As a result of the percolation testing,the proposed septic system disposal area demonstrated a <br /> 'j satisfactory percolation rate in accordance with the requirements of the San Joaquin County <br /> f-� EDH. <br /> 8.0 CONCLUSIONS AND RECOMMENDATIONS <br /> In summary, a satisfactory percolation rate was achieved on all three parcels of the subjectsite. <br /> No ground water was encountered in any of the borings drilled on the property. An on-site water <br /> well.was tested for nitrate and DBCP. DBCP was non-detectable, and nitrate was found at 9 <br /> mg/L-N031 well Below thc=maximum contaminate limit 45 mg/L-NO3. <br /> Based on the results of this study, our office has found the.soils to be suitable for a standard septic <br /> system with leach lines and seepages for the tested areas of the site. <br /> We believe that due to the large proposed parcel sizes and fine-grained soils, the use of the <br /> conventional septic systems or engineered septic systems on the property will not negatively <br /> impact the ground water quality of the area. We recommend that the design and installation of <br /> the septic system follow the requirements established by the San Joaquin County Environmental <br /> ,Health Division. • <br /> z � <br />