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16 October 2001 ti AGE-NC Protect No 98-0426 Page 3 of 4 I I No fuel oxygenates were detected above laboratory reporting limits in any of the ground water samples collected I The current and historical ground water analytical results are summarized on Table 2 The laboratory report(MAI Lab I D No 75681 through 75683), chain-of custody form and the laboratory QA/QC report are included in AppendI ix B 4.0. SUMMARY AND CONCLUSIONS w Based on the data collected during this monitoring period, AGE concludes r • Ground water flow at the site was toward the northeast which is consistent with the May 2001 monitoring event and regional trends The ground water elevation has increased approximately 1 1 feet since the May 2001 sampling event I V TPH-g was detected in the ground water sample from MW 1, TPH-g concentrations increased in the sample from MW3 this quarter compared to the May 2001 sampling event BTEX compounds were not detected in the sample from MW-1,but various BTEX compounds were detected in the samples from MW-2 and MW-3 O MTBE concentrations remained at non'-detectable levels for the fourth consecutive quarter 1 I I f I .. ' 1 , ' F • I r 5.0. RECOMMENDATIONS AGE recommends the following • Continued quarterly monitoring of the groundwater monitoring wells The next monitoring event will be performed in December 2001 • Discontinue analyses fo'r fuel oxygenates AGE installed two additional ground water wells on 24 September 2001 in the down-gradient and eastern cross'gradient directions from monitoring well MW3,and advanced three soil bonngs on 01 through 03 betober 2001 'to define"vertical and lateral extent of contamination (Figure 2) The findings from the additional site investigations'will be submitted in a subsequent report I 1 K I Advanced GeoEnvironmental,Inc I