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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 10.0 min/in <br /> (Parcel 1) and 9.26 min/in (Parcel 2) were observed in the test locations. <br /> The depth of ground water based on recent aquifer levels is estimated to range between <br /> 101 to 109 feet below ground surface. The ground-water flow is to the northeast at a <br /> rate of approximately four to five feet per mile. <br /> The on-site domestic water well near the office was tested for nitrate and DBCP. Nitrate <br /> was detected at a concentration of 8.4 mg/L-N in the water sample. DBCP was not <br /> detected in the sample. The US EPA has set the Maximum Contaminant Level (MCL) <br /> for nitrate as nitrogen at 10 mg/L-N and the MCL for DBCP at 0.2 ppb (equivalent to <br /> pg/L). <br /> We believe the Site suitable for the use of standard septic systems utilizing leach lines <br /> and seepage pits. <br /> • <br /> • <br /> LOGE 1706 Page 8 <br />