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' 19 November 2004 <br /> i AGE-NC Project No 99-0559 <br /> Page 4 of 7 <br /> top of the ground water table remained within the screened interval of these wells At the time of the <br /> September 2004 monitoring event,ground water flow within the interval of HU 1 and HU2 wells was <br /> inferred to be toward the north (Figure 3), at a gradient of approximately 0 005 ft/ft <br /> HU3 and HU4 <br />' In the wells representing HU3 and HU4, the depth to ground water ranged from 65 45 to 66 20 feet <br /> btoc The ground water elevation was calculated between 40 84 feet (MW-6B) and 41 01 feet <br />' (MW-7B)below MSL, the ground water elevation from wells in this hydrologic interval decreased <br /> 5 5 feet since the last quarterly monitoring event Ground water was inferred to be flowing north at <br /> a gradient of 0 0017 ft/ft (Figure 4) <br /> HU5 <br />' Within the upper portion of HU5 (Upper HU5), screened between 125 and 135 feet bsg, �ound <br /> 1 • water elevation ranged between 40 99 feet (MW-6C) and 4136 feet (MW-7C) below MSL, the <br /> ground water elevation decreased 5 5 feet since the last monitoring event Ground water at the former <br /> UST release was inferred to be flowing toward the north at a gradient of 0 0037 ft/ft (Figure 5) <br />' Within the lower portion of HU5 (Lower HU5), screened between 148 and 160 feet bsg, ground <br /> water elevation ranged between 41 10 feet (MW-6D) and 4161 feet (MW-7D) below MSL, the <br />' ground water elevation decreased 5 3 feet since the last monitoring event Ground water was <br /> determined to be flowing toward the north at a hydraulic gradient of 0 0053 ft/ft (Figure 6) <br />' HU6 <br />' In the wells representing HU6,the depth to ground water ranged between 66 86 and 68 00 feet btoc <br /> The ground water elevation was calculated between 42 26 feet(MW-5E) and 43 06 feet(MW-7E) <br /> below MSL, the ground water elevation from wells in this hydrologic units decreased 5 5 feet since <br />' the last quarterly monitoring event Ground water was inferred to be flowing toward the north at a <br /> hydraulic gradient of 0 0062 ft/ft (Figure 7) <br />' 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLE ANALYSIS <br />' Twelve ground water samples were analyzed by CTEL for the chemical constituents referenced in <br /> . Section 2 2 The following is a summary of the analytical results <br /> IAdvanced Geo Environmental,Inc <br /> I <br />