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1 r , <br /> n I <br /> �r v- .y;s rsax.,' �"a �sL�r,x I h^"-" e--C-�rr•,f .-it �-ifa- <br /> 1 <br /> 30 January 2004 <br /> AGE-NC Project No "60-0769 r <br /> -Page 3 of 7 <br /> r V r <br /> I v + <br /> " HU-1 <br /> Based on ground water elevation data collected In HU-1 Upper Zone(25 to 51 feet bsg),the ground <br /> # r r water flow forms a slight edge, with the northeast limb flowing to the southeast at a gradient of i u <br /> approximately 0 005 f1/ft and the southwest limb flowing east-southeast at a gradient of <br /> approximately 0 005 ft/ft (Figure 3) <br /> 1 , � <br /> 1 5 <br /> '! , HU-2 <br />' Basedoni ground water elevation data collected in HU-2 (112 to 125 feet bs the ground water flow <br /> gr ( g}, <br /> forms a trough plunging or directed to the northeast The northwest limb flows east-southeast at a , 1 <br /> gradient of approximately 0 002 ft/ft and the eastern limb flows to the northwest towards the site at <br /> a gradient of approximately 0 002 ft/ft(Figure 4) ' <br /> 5 <br /> I <br /> -HU-3 <br /> I t <br /> Ir i <br /> ( Based on ground water elevation data collected In HU-3(140 to 160 feet bsg)the groundwater flows <br /> generally north-northeast 'The gradient is approximately 0 008 ft/ft in the northeastern area of the <br /> site In the southeast portion of the site, the gradient Is approximately 0 011 fl/ft (Figure 5) <br /> 1 <br /> HU-4 <br /> 1 IF r f ( <br /> Based on ground water elevation data collected in HU-4(160 to 175 feet bsg)the ground water flow <br /> forms a ridge plunging east-southeast The nortliwest limb flows northeast under a;gradient of <br /> approximately 0 006 ft/ft and the southwest limb flows southeast under a gradient of 0 004 ft/ft <br /> '(Figure 6) M ' <br /> s r I <br /> 3 2 lANALYTICAL'RESULTS OF GROUND WATER SAMPLES <br /> During the May 2003 ''sampling event, ground water samples from 31 monitonng,polnts were, <br /> collected from HU-,I'through HU-5 and submitted for laboratory analysis for the constituents listed, <br />' 41 <br /> in Section 2'2 Analytical laboratory results are summanzed in Tables 2-5 1 IT <br /> + I 1 <br /> 1 ' r <br /> r <br /> I, I <br /> Advanced GeoEnvironmental,Inc , <br /> A, <br /> � r v1 I <br /> ! I I r <br />