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24 December 2001 <br /> • AGE-NC Project No 95-0130 <br />' Page 3 of 5 <br />' water elevation data for MW-1 through VW-3 during the August 2001 ground water monitoring <br /> event is depicted in Figure 3 <br />' Ground water flow direction in the area bound by wells MW-1 through VW-3 was inferred to be <br /> toward the northeast at a gradient of 0 007 ft/ft or less (Figure 3) <br />' 3 2 LABORATORY RESULTS OF MONITORING WELL GROUND WATER SAMPLES <br />' A total of eleven ground water samples were submitted to a DHS-certified laboratory for analysis <br /> BTEX compounds were detected in water samples collected from wells MW-2, MW-3, MW-5, <br /> VW-1B, VW-1C, VW-2A and VW-3A at concentrations as high as 47,000 micrograms per liter <br />' (ug/1) (toluene, VWAB) The greatest benzene-impact was detected in ground water sample <br /> collected from well VW-2A at a concentration of 34,000 /,Ig/l <br />' TPH-g was detected in water samples collected from wells MW-2,MW-3,MW-5,VW-1B,VW-IC, <br /> VW-2A and VW-3A at concentrations as high as 220,000 kig/1 (VW-1B), the laboratory reported <br /> . each TPH-g chromatograrn as having unmodified or weakly modified gasoline patterns <br />' MTBE was detected in ground water samples collected from wells MW-1 MW-2 MW-3 VW-IB <br /> VW-1C, VW-2A and VW-3A at concentrations as high as 2,300µg/l (VW-3A) TBA was detected <br /> in ground water samples collected from wells MW-3 and MW-5 at concentrations of 95 µg/1 and 35 <br /> /,cg/l, respectively There were no reported detections of fuel oxygenating compounds in any other <br /> ground water samples analyzed <br /> 1,2-DCA was detected in ground water samples collected from wells MW-2, MW-3, VW-113, <br /> VW-1C and VW-2A at concentrations as high as 210,ug/1 (VW-2A) EDB was detected in ground <br /> water samples collected from wells VW-1B and VW-1C at concentrations of 160 1.tg/1 and 85 µg/1, <br /> respectively There were no reported detections of 1,2-DCA or EDB in any other ground water <br /> samples analyzed <br /> No other fuel components were detected in any other ground water samples Previous and current <br /> analytical results of ground water monitoring well samples are summarized in Tables 2 and 3 The <br /> laboratory reports (McCampbell Analytical Inc I D Nos 74734 through 74742) and chain-of- <br /> custody forms are presented in Appendix B <br /> 4.0 SUMMARY AND CONCLUSIONS <br /> The implications from the August 2001 ground water monitoring event are as follows <br /> . p � l�' g <br /> Advanced GeoEnvironmental,Inc <br />