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' 16 December 2005 AGE-NC Project No 97-0249 ' Page 6 of 8 ' Toluene was detected in domestic well DW-1 at a concentration of 0 95 µg/l and MTBE was detected at a concentration of 0 79 µg/1 ' No other fuel components were detected in the groundwater samples Previous and current analytical results of ground water monitoring well samples are summarized in Tables 3 and 4,analytical results for the domestic water well sample are summarized in Table 5 Analytical ground water data for the ' Flag City Chevron's monitoring events are Included in Appendix A The laboratory reports (MAI Work Orders 0506512,0506514 and 0506539),quality assurance/quality control(QA/QC)reports and chain of custody forms are presented in Appendix C , GeoTracker confirmation pages of the ' submitted laboratory electronic deliverable format (EDF) files are included in Appendix D 4.0. SUMMARY AND CONCLUSIONS The implications from the June 2005 ground water monitoring event are as follows • Generally, depth to ground water at the site varied between 8 feet and 11 feet bsg, ground water elevations ranged between 0 97 feet(MW-1 OF)and 1 66 feet(MW-9A-C)above mean sea level • Ground water data collected from Hydrogeologic Units 1 through 6 at both the Three B's Truck Plaza and the Flag City Chevron site's generally inferred a net ground water flow direction towards the east-southeast(Fi gures 4 through 7) • The most intense TPH-g-impacted ground water was reported from Hydrogeologic Unit 1 in the area of wells MW-1, MW-2, MW-3, MW-5, MW-6, MW-8A and MW-10A, at concentrations as high as 44,000 µg/l (Figure 8) • The most intense TPH-d-impacted ground water was reported from Hydrogeologic Unit 1 in the area of wells MW-1, MW-2, MW-3, MW-5, MW-6, MW-8A and MW-l0A at a concentration as high as 5,700 µg/1 (Figure 9), an isolated TPH-d occurrence was reported at Flag City Chevron well MW-12A, approximately 200 feet southeast of the site • The most intense,on-site Hydrogeologic Unit 1 MTBE-impacted ground water was reported from the area of Three B's Truck Plaza wells MW-1, MW-2, MW-4 and MW-8A at concentrations as high as 120 µg/1 and from Flag City Chevron well MW-16 at a concentration of 42 µg/l (Figure 10) • The most intense on-site,Hydrogeologic Unit 2 MTBE-impacted ground water was reported from the area of Three B's Truck Plaza well MW-10B at a concentration of 19µg/l,and from IFlag City Chevron well MW-17 at a concentration of 56 µg/1 (Figure 11) • The most intense on-site,Hydrogeologic Unit 3 MTBE-Impacted ground water was reported Advanced GeoEnvironmental,Inc i I