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bw V u <br /> October 5,2005 <br /> NOA Project Number: E05129A <br /> L No ground water was encountered by the staff of Neil O.Anderson&Associates,Inc. during the <br /> drilling of a boring to a depth of eight(8) feet on October 3,2005. <br /> L4.2 Potential Ground Water Contamination Issues <br /> LIdentifying potential ground-water contamination sources was not part of the scope of work for the <br /> soil suitability study. <br /> L <br /> Potential ground-water contamination can occur from a number of sources which often include <br /> leaky underground storage tanks, agricultural activities, dairies, septic systems, and storm water <br /> Linfiltration. Any past agricultural activities and the present use of septic systems in the area should <br /> be considered potential ground-water contamination sources. <br /> L4.3 Water Sample Location <br /> h <br /> No permits were found for the property during file review at EHD on September 28,2005. <br /> `„ A water sample was taken by Ms. Nancy Rosulek on September 26, 2005 from the spicket on the <br /> west side of the 3,304 square foot storage building. <br /> I <br /> L <br /> 4.4 Water Sample Constituents <br /> LThe water sample was analyzed for nitrate and DBCP. DBCP was not detected in the water sample. <br /> Nitrate was found at 43.1 mg/L-NO3,which is slightly below the maximuin contaminant level <br /> (MCL) set by the US EPA of 45 mg/L-NO3.The analytical reports prepared by Precision Enviro- <br /> Tech can be found in the appendix of this report. <br /> LWell construction, seals,age and depth of the well screens may play a significant part in assessing the <br /> levels of Nitrate and DBCP in various aquifers. Without knowing specific details regarding well <br /> ` construction and condition,it would be difficult to accurately comment on the condition of the <br /> Ir aquifer. Essentially, the water sample concentration approximately indicates the contaminant <br /> concentration of the aquifer from which the well is drawing water should contamination exist. It is <br /> Neil O.Anderson and Associate's opinion that near surface aquifers are more likely to have elevated <br /> concentrations of Nitrate and DBCP than the deeper aquifers. However, the contaminant <br /> concentration in one aquifer does not give any indication as to the concentrations of any other <br /> Laquifer regardless of proximity. <br /> 6 <br /> r,. *44 <br /> L <br />