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30 April 2003 AGE-NC Project No 95-0184 Page 3 of 5 3 2 ANALYTICAL RESULTS OF WATER SAMPLES TPH-g was detected in alI of the sampled monitoring wells at concentrations ranging from 780 micrograms per liter(µg/1)in MW-7 to 350,000µg/1 in VW-5B(Figure 3)TPH-d was detected in the sample from MW-4 at a concentration of 10,AV1 A map of TPH concentrations is provided in Figure 3t� �1p� BTEX compounds were detected in all ground water samples analyzed with the exception ofMW-7 The maximum concentrations detected were 38,000 µg/1 benzene in sample VW-21 34,000 µg/1 toluene,5,200µg/1 ethylbenzene and 27,800µg/l total xylenes in sample VW-5B A map ofbenzene concentrations is provided In Figure 4 IMTBE was detected in samples from wells MW-1 through MW-4, VW-2B, VW-3 and VW-4at concentrations ranging from 2 6µg/1 III sample MW-1 to 510µg/1 in sample VW-4A map ofMTBE� concentrations is provided in Figure 5 The lead scavenger 1,2-dichloroethane(1,2-DCA)was detected in Barn es MW-2, -4,VW-2B, VW-3, VW-4, VW-5B and VW-5C, at concentrations ranging from lig/1 (MW-,M)to 550 Rg/l (VW-2B), the lead scavenger 1,2 dibromoethane (EDB) was detected in samples MW-4, VW-2B--' and VW-5B at concentrations of 19 µg/1, 340 µg/1 and 260 µg/l, respectively A map of 1,2-DCA Iconcentrations is provided in Figure 5 Five additional VOCs were detected at the following maximum concentrations naphthalene at 3,200 Ag/1(VW-3), 1,2,4-tnmethylbenzene at 2,800µg/1(VW-3),n-propylbenzene at 460 pg/1(VW-5B), 1,3,5 tnmethylbenzene at 880 µg/l (VW-5B) and isopropylbenzene at 160 µg/l (VW-5C) Analytical results of ground water samples are summarized on Tables 2 and 3 Copies of the laboratory report (CTEL Project No CT214-0212084) and chain-of-custody forms are in Y� Appendix C 4.0. SUMMARY AND CONCLUSIONS Based upon data collected from the site, AGE concludes the following • Ground water elevations at the site ranged from 22 65 to 23 18 feet below MSL All ground water wells except VW-3;VW-4 and VW-5B were"drowned",with water levels as high as 20 feet above the screened Intervals of the drowned wells Advanced GeoEnvironmental,Inc.