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' 10 December 2001 AGE NC Project No 95-0143 ' Page 7of10 ' • VW-2 (located 24 feet toward the northwest) at 0 33 feet after 1,335 minutes of pumping operation, ' • MW-7 (located 48 feet toward the west) at 0 20 feet after 1,335 minutes of pumping operation, • VW-4 (located 48 feet toward the southwest) at 0 20 feet after 1,335 minutes of pumping ' operation, • VW-1 (located 54 feet toward the west) at 0 20 feet after 1,335 minutes of pumpmg ' operation, and • MW-9 (located 140 feet toward the north) at 0 12 feet after 1,335 minutes of pumping ' operation Copies of field logs with water level data from the eight wells are included In Appendix I A semi- logarithmic plot of draw-down versus distance for EW-3, EW-4, MW-3, MW-7, MW-9, VW-1, VW-2 and VW-4 is in Appendix.7 Table 4 summarizes draw-down results of the constant pumpmg rate test Based on data recorded by the transducers, aquifer stabilization was achieved utilizing an 8-gpm pumping rate after approximately 8 hours of pumping operation 3 2 2 Aquifer Pumping Analysis The maximum ground water draw-down in wells EW-4, MW-3, VW-2, MW-7, VW-4, VW-1 and MW-9 versus the distance of each well from the extraction point were graphed on semi-logarithmic paper(Appendix J),utilizing the Distance-Drawdown Method(Jacob straight-line method), general transmissivity, storativity and hydraulic conductivity values were determined(Appendix K) Ground water levels in the seven observation wells all appeared to be influenced with measurable draw-down during the pumping test Utilizing data collected from the observation wells, a transnussivity value was calculated at 1,120 ft'/day, a storativity value calculated at 0 099, a hydraulic conductivity value of 0 147 cm/sec and a radius of influence projected at 160 feet utilizing a semi-logarithmic plot of draw-down versus distance (Appendices J and K) Results of the aquifer ground water pumping test are summarized in Table 4, a site plan depicting the radius of influence during the 17 and 18 July 2001 pumping test is depicted in Figure 3 Advanced GeoEnvironmental,Inc