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- � n r + 1 i _ r I 04 December 2000 • AGE-NC Project No 98-0426 ' t ' 'Page 3 of 4 + No fuel oxygenates were detected above laboratory reporting limits in any of the ground water samples collected , r 5 fi The current and historical ground water analytical results are summarized on Table 2 The laboratory report(MAI Lab I D No 52570 through 52572), chain-of custody form and the laboratory QA/QC report are included in Appendix B 1 t 4.0. SUMMARY AND CONCLUSIONS I Based on the data collected during this monitoring period, AGE concludes { • Ground water flow at the site was toward the northeast which is consistent with the July 2000 monitoring event and regional trends The ground water elevation has decreased I approximately 130 feet since the July 2000 sampling event • In general, TPH'g concentrations increased slightly 1n MW1 'and MW3 and decreased significantly in MW2 this quarter as compared to the July 2000 sampling event Benzene concentrations remained below detection limits in MWI, increased slightly in MW2 and 4 decreased to a non-detectable level in MW3 MTBE concentrations in well MW3 remained at non-detectable levels for the second consecutive quarter T ' S 0. , RECOMMENDATIONS 1 - AGE recommends the following f Continued quarterly monitoring of the ground water morutonrig wells' The next'nzonitonng event will be performed in February 2000 • AGE recently submitted a work plan to install two additional,ground water wells in the down-gradient direction from Imonitoring well MW3 (Figure 2) The work plan has been approved by the PHS-EHD and the installation of these wells is anticlpatEd to occur in the first quarter-of 2001 6.0. LIMITATIONS F 1 I M1 t I Our professional services were performed using that degree of care and skill ordinarily exercised by environmental consultants practicing in this or sunilar localities The findings were based upon II , Advanced GeoEnvironmental,Inc I 0 1 a