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1 Y <br /> 16 January 2001 <br />' AGE-NC Project No 98-0505 <br /> Page 8 of 9 <br />' (MW-1 through MW-8) Concentrations ranged from 2 6 gg/1(MW-4) to 550 gg/l(MW-1) <br /> EDB was not detected in any of the ground water samples collected during the November <br /> 2000 monitoring event <br /> 1 <br /> Laboratory results of water samples analyzed for petroleum hydrocarbons are summarized in Tables <br /> 4 and 5 The laboratory reports for the quarterly monitoring event (MAI Lab Nos 53204 through <br />' 53211) QA/QC reports and chain-of-custody form are included in Appendix D <br /> IConcentrations of TPH-g and benzene m ground water are illustrated on Figures 4 and 5 <br />' 5.0. SUMMARY AND CONCLUSIONS <br /> The findings of the 25 and 26 October and 10 November 2000 site investigation events include the <br />' foIlowing <br /> Ile • Contamination by TPH-g, BTEX compounds, EDB or 1,2-DCA was detected in all soil <br /> samples analyzed from soil boring MW-6 EDB was detected in one soil sample collected <br /> from soil boring MW-8 Contanunation by TPH-g and BTEX compounds was not detected <br /> in soil samples analyzed from soil boring MW-7 and MW-8 Contamination by fuel <br /> Ioxygenates was not encountered in samples analyzed from MW-6, MW-7 or MW-8 <br /> • Contamination by TPH-g and BTEX compounds was encountered in ground water samples <br /> collected from each monitoring well at the site (MW-1 through MW-8) <br /> MTBE and other fuel oxygenates was not detected in the ground water sample collected from <br /> monitoring wells MW-1 through MW-8 <br /> I0 1,2-DCA was detected in ground water samples collected from each monitoring well at the <br /> site (MW-1 through MW-8) EDB was not detected in any of the ground water samples <br /> collected during the November monitoring event <br /> • The horizontal and vertical extent of contamination related to the former UST has not yet <br /> been defined in soil or ground water <br /> I0 Measured ground water elevation is approximately 11 8 feet below rnsl, and was within the <br /> screened interval of the two recently installed shallow monitoring wells (MW-7 and MW-8) <br /> Ground water was approximately 18 feet above the screened interval of MW-1 through <br /> MW-5 and was approximately 40 feet above the screened interval of the deep well MW-6 <br /> I <br /> Advanced GeoEn"ronmental,Inc <br /> I <br />