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I ' 5 5.0 SUMMARY OF RESULTS AND DISCUSSION ' A summary of the analytical results from current and past well samplings is presented in Table 1 Based on the water-level data for December 9, 1994 (Table 1 ), RESNA ' has interpreted the groundwater gradient and flow directions for the upper and lower aquifers, as shown on Figures 3 and 4, respectively In the local upper aquifer (Monitoring Wells MW-5, MW-6 and MW-7), the groundwater level dropped an average of 0 52 feet, ranging from -0 37 feet in Monitoring Well MW-7 to -0 60 feet in Monitoring Well MW-5 In the local lower aquifer (Monitoring Wells MW-1 R, MW-2, ' MW-3, and MW-4), the groundwater level dropped an average of 0 79 feet, ranging from -0 60 feet in Monitoring Well MW-2 to -1 15 feet in Monitoring Well MW-113 ' The apparent groundwater flow direction in the local upper aquifer is south- southeasterly, at a gradient of approximately 0 007 (Figure 3) The apparent ' groundwater flow direction in the local lower aquifer is easterly at a gradient of approximately 0 009 (Figure 4) Laboratory analyses of the water samples collected that from Monitoring Well MW-5 before and after pumping on February 8, 1994, (Samples MW-5A and MW-56) iindicated TPH-G and BTEX were not detected in these samples Laboratory analyses of water samples collected on December 9, 1994, indicated that low concentrations iof TPH-G only (56 ppb) were detected in Monitoring Well MW-5 TPH-G and BTEX were not detected in any of the other sampled monitoring wells Wells MW-3 and i MW-4 were not sampled because -they are located upgradient of the underground storage tanks, and, historically, TPH-G and BTEX have not been detected in the i groundwater from these wells The next quarterly groundwater sampling is scheduled for March 1995 I i i CanouieEnvironmental PLM 194 2731R@P0RT514THQTR 223 [Feb 23 19951