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1 <br /> 31 October 2002 <br /> AGE-NC Project No 95-0184 <br />' Page 3 of 5 <br /> of about 0 026 ft/ft)on the northwest side of the finger and a southeasterly flow direction(gradient <br />' of about 0 004 ft/ft)on the southwest side of the finger <br />' 3 2 ANALYTICAL RESULTS OF WATER SAMPLES <br />' TPH-g was detected in all of the sampled monitoring wells at concentrations ranging from <br /> 140 micrograms per liter (µg/1) in MW-3 to 150,000 µg/1 in VW-5B "TPH-d was detected in the <br /> sample from MW-4 at a concentration of 7 4 IM71map of TPH concentrations is provided in <br /> Figure 3 <br /> 41A <br /> BTEX compounds were detected by EPA Method 8260 to nine of the ground water samples <br />' analyzed, no BTEX compounds were detected in monitoring well M -7 /The maximum <br /> concentrations found were toluene 29,000 µg/1 (VW-5B)Ttotal xylenes 2, ,200 µg/1 (VW-5B), <br /> benzene 23,000 µg11(VW-2B) and ethylbenzene 3,600 µg/1 (VW-4 and VW-5B) A map of BTEX <br />' concentrations is provided in Figures 4 and 5 i <br /> MTBE was detected by EPA Method 8260 in VW-4 at a concentration of 5 50 µg11,none of the other <br /> M oxygenated volatile organics were detected at concentrations above laboratory reporting limits <br /> r <br /> The lead scavenger 1,2-d>ichloroethane (1,2-DCA)was detected in samples VW-213, VW-3,-VW-4 <br /> iand MW-4, at concentrations ranging from 110 µg11 (VW-3) to 440 µg11 (MW-4), the lead <br /> scavenger 1,2 dibromoethane(EDB)was detected in samples VW-2B and VW-5B at concentrations <br /> 1 of 350 µg11 and 260 µg/l, respectively A map of 1,2-DCA and EDB concentrations is provided in <br /> Figure 6 <br />' Four additional constituents were detected by EPA Method 8260 at the following concentrations, <br /> naphthalene and 1,2,4-tnmethylbenzene were detected in samples MW- MW-2,MVV-1,VW-2B, <br /> VW-3, VW-4, VW-5B and VW-5C at a maximum concentration of µg/1 (VWand 2,200 <br />' µg/l(VW-5Crespectively,n-propylbenzene was detected in samples VW-4,VW-5B and VW-5C <br /> at a maximum concentration of 270µg/3 (VW-5C), and 1,3,5 tnmethylbenzene was detected in <br /> samples MW-4, VW-2B, VW-3, VW-4, VW-5B and VW-5C at a maximum concentration of 5801 <br /> µg11 (VW-5C) --- <br /> Analytical <br /> Analytical results of ground water samples are sunimanzed on Tables 2 and 3 Copies of the <br />' laboratory report (CTEL ID 0203-062-1 through 0203-062-10) and chain-of-custody forms are in <br /> Appendix B <br /> t <br /> Advanced GeoEnvironmental,Inc <br />