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�t <br /> i <br /> 5 <br /> 4. SUMMARY OF RESULTS <br /> A summary of the analytical results from current and past well samplings is presented <br /> in Table 1 Based on the water-level data for February 11, 1997 (Table 1 ), Smith <br /> Technology has interpreted the groundwater gradient and flow directions for the upper <br /> and lower aquifers, as shown on Figures 3 and 4, respectively In the local upper <br /> aquifer (Monitoring Wells MW-5, MW-6 and MW-7), the groundwater level rose an <br /> average of 2 48 feet, ranging from 2 42 feet in Monitoring Well MW-7 to 2 54 feet in <br /> Monitoring Well MW-5. In the local lower aquifer (Monitoring Wells MW-1R, MW-2, <br /> MW-3, and MW-4), the groundwater level rose an average of 2 56 feet, ranging from <br /> 2 53 feet in Monitoring Wells MW-1R and MW-2 to 2 64 feet in Monitoring Well <br /> MW-3 The apparent groundwater flow direction in the local upper aquifer is <br /> southeasterly at a gradient of approximately 0 004 (Figure 3) The apparent <br /> groundwater flow direction in the local lower aquifer is easterly at a gradient of <br /> approximately 0 003 (Figure 4) <br /> Laboratory analyses of water samples collected on February 11, 1997 from <br /> Monitoring Wells MW-5, MW-6, and MW-7, indicated that TPH-G and BTEX were not <br /> detected in any of these samples While MTBE was not detected in the groundwater <br /> sample collected from Monitoring Wells MW-6 and MW-7, it was detected in the <br /> I <br /> sample collected from Monitoring Well MW-5 at a concentration of 340 parts per <br /> billion (ppb) The next quarterly groundwater sampling is scheduled for the second <br /> quarter of 1997 <br /> �I <br /> • <br /> MV4W 404 2731QUIK 132 RPT 131191971 SITH <br />