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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 were observed in <br /> the shallow and/or deep soil zones at the test locations (Table 2). No new construction <br /> is proposed at this time. With a satisfactory test, the area 100 feet in radius from each <br /> test location could be used to construct a septic system drain field. <br /> The depth of ground water based on recent aquifer levels is approximately 138 to 240 <br /> feet below ground surface, depending on the location on the Site. The ground-water <br /> flow direction in the area is to the west at a rate of approximately 10 feet per mile. <br /> A water sample was collected from the domestic water well at the northern building <br /> cluster on the Site. Nitrate was detected at a concentration of 14.8 mg/L-NO3 in the <br /> water sample, well below the US EPA's Maximum Contaminant Level (MCL) of 45 <br /> mg/L. DBCP was not detected in the sample. <br /> We believe the Site suitable for the use of standard septic systems utilizing leach lines <br /> and seepage pits. <br /> LOGE 1419 Page 13 <br />