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3 I <br /> I28 May 2003 <br /> AGE-NC Project No 95-0184 <br /> Page 3 of 5 <br /> I <br />' 32 ANALYTICAL RESULTS OF WATER SAMPLES <br /> TPH-g was detected in all of the sampled monitoring wells at concentrations ranging from <br />' 600 micrograms per liter (µg/1) in MW-7'to 180,000 µg/1 in VW-3 and VW-2B (Figure 3) TPH-d <br /> was detected in the sample from MW-4 at a concentration of 80,000 µg/l A map of TPH <br /> concentrations is provided in Figure 3 <br /> BTEX compounds were detected in all ground water samples analyzed The maximum <br /> concentrations detectedwere 58,000 Vg/1 benzene in sample VW-2B,41,000µg11 toluene in VW-5B, <br />' 5,000µg/1 ethylbenzene in VW-3 and 25,500 µgll total xylenes in sample MW-4 A map of benzene <br /> concentrations is provided in Figure 4 Z <br /> IMTBE was detected in samples from wells MW-4, VW-213, VW-3 and VW-4 at concentrations <br /> ranging from 80 µg/l in sample VW-3 to 1,100 µg/1 in sample VW-4 A map of MTBE <br /> concentrations is provided in Figure 5 <br />' The lead scavenger <br /> . scaven er i 2-dichloroethane(1,2-DCA)was detected in samplesles MW-2 MW-4,VW-2B, <br /> VW-3, WVW-56'and <br /> VW-5C,at concentrations ranging from 13 4g/1 (MW-2) to 440 µg/1 <br /> (VW-2B) A map of 1,2-DCA concentrations is provided in Figure 5 <br />' Seven additional VOCs were detected at the following maximum concentrations DIPE at 6 7 µg/1 <br /> (VW-4),naphthalene at 2,200µg/l(MW-4), 1,2,4-tnmethylbenzene at 3,800 gg/l(MW-4),n-propyl <br /> benzene at 300 gg/1 (VW-5C), 1,3,5 tnmethylbenzene at 1,500 µg/1 (MW-4);isopropylbenzene at <br />' 130 µg/l (VW-5C)p-isopropyltoluene 20 gg/l (VW-2B , and n-butyl benzene 60 gg/l (VW-4) <br /> Analytical results of ground water samples are summarized on Tables 2 and 3 Copies of the <br />' laboratory report (CTEL Project No CT214-0303136) and chain-of-custody forms are in <br /> Appendix C <br /> 4.0. SUMMARY AND CONCLUSIONS <br />' Based upon data collected from the site, AGE concludes the following <br /> • Ground water elevations at the site ranged from 22 03 to 22 54 feet below MSL All ground <br />' water wells except VW-3, VW-4 and VW-5B were"drowned",with water levels as high as <br /> 20 feet above the screened intervals of the drowned wells <br /> • The ground water was inferred to flow generally northeast across much of the site at a <br />' gradient of approximately 0 003 ft/ft(Figure 2),however, in the northwestern portion of the <br />' Advanced GeoEnvironmentul,Inc <br /> 1 � , <br />