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CONCLUSIONS AND RECOMMENDATIONS <br /> In summary, the soil conditions near the percolation tests appear to be suitable. For <br /> Parcel -01, satisfactory soil percolation rates of less than 4.5 min/in (Parcel 1), less than <br /> 4.6 min/in (Parcel 2), and less than 4.2 min/in (Parcel 3) were observed. For Parcel -10, <br /> satisfactory soil percolation rates of less than 3.0 min/in (Parcel 1), 3.7 min/in (Parcel 2), <br /> less than 5.3 min/in (Parcel 3), and less than 3.7 min/in (Parcel 4) were observed. No <br /> new construction is proposed at this time. With a satisfactory test, the area 100 feet in <br /> radius from the 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 80 to 95 feet <br /> below the ground surface. The ground-water flow direction is to the northeast. <br /> The on-site domestic water well (Parcel -10) was tested for nitrate and DBCP. Nitrate <br /> was detected in the sample at a concentration of 22.3 mg/L-NO3. This is well below the <br /> US EPA's Maximum Contaminant Level (MCL) for nitrate of 45 mgiL-NO3. DBCP was <br /> not detected in the sample. <br /> The irrigation well on Parcel -01 of the Site was not tested because its power supply <br /> was off at the time of testing. However, during a recent sampling event from October of <br /> 2010, nitrate was detected in the water sample at a concentration of 0.31 meq/L (19.2 <br /> mg/L), well below the MCL of 45 mg/L-NO3. <br /> We believe the Site suitable for development with the use of standard septic systems <br /> utilizing leach lines or leach lines with sumps. <br /> LOGE 1118 Page 9 <br />