Laserfiche WebLink
i <br /> i <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> E <br /> f <br /> In summary, the soil conditions examined near the location of the septic system drain <br /> field appear to be suitable. A satisfactory soil percolation rate of 15.6 minutes per inch <br /> was observed for the shallow soil zone. <br /> The depth of ground water based on recent aquifer levels is relatively deep and <br /> approximately 59 to 63 feet below the ground surface. The ground-water flow direction <br /> is toward the northeast or east at a rate of three to seven feet per mile in the vicinity of <br /> the Site. <br /> The on-site domestic water well is not currently operational; no water sample was <br /> collected. Once the well has been repaired, a sample will be collected and tested for <br /> nitrate and DBCP. <br /> Based on the method and assumptions described, the use of on-site septic tanks and <br /> drain field systems on the Site is not expected to cause a buildup of nitrate in the aquifer <br /> above 7.82 mg/L-N, which is below the US EPA drinking water recommendation of 10 <br /> mg/L-N. <br /> LOGE1025 <br /> Page 13 <br />