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CONCLUSIONS AND RECOMMENDATIONS <br /> In summary, the soil conditions near the percolation tests appear to be suitable for use <br /> with an on-site septic system. Satisfactory soil percolation rates of 1.8 min/in (Parcel <br /> 1) and 41.7 min/in (Parcel 2) were observed in the test locations. No new construction <br /> is proposed at this time. With a satisfactory test, the area 100 feet in radius from the <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 38 to 42 feet, <br /> depending on the season. The ground-water flow direction is to the north at a rate of <br /> approximately five to six feet per mile in the vicinity of the Site. <br /> A water sample was collected from the domestic water well on the Site. Nitrate was <br /> detected at a concentration of 93.5 mg/L-NO3 in the water sample. This value exceeds <br /> the US EPA's Maximum Contaminant Level (MCL) of 45 mg/L. DBCP was not detected <br /> in the sample. Based on the level of nitrate detected, it is recommended that the <br /> occupants avoid drinking or cooking with the well water until the level can be reduced to <br /> below the MCL. The EHD should be contacted for recommendations on a long-term <br /> nitrate reduction strategy. <br /> We believe the Site suitable for development with the use of standard septic systems <br /> utilizing leach lines and sumps. <br /> LOGE 1135 Page 8 <br />