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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 September 17, 1996 (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 fell an <br /> average of 0.93 feet, ranging from -0 89 feet in Monitoring Well MW-6 to -0 96 feet <br /> in Monitoring Well MW-7. In the local lower aquifer (Monitoring Wells MW-1R, MW-2, <br /> MW-3, and MW-4), the groundwater level fell an average of 0 94 feet, ranging from <br /> ' -0 91 feet in Monitoring Well MW-4 to -0 95 feet in Monitoring Well MW-2. The <br /> apparent groundwater flow direction in the local upper aquifer is to the southeast at a <br /> gradient of approximately 0 006 (Figure 3). The apparent groundwater flow direction <br /> in the local lower aquifer is to the southeast at a gradient of approximately 0 029 <br /> (Figure 4) <br /> Laboratory analyses of water samples collected on ,lune 4, 1996 from Monitoring <br /> Wells MW-5, MW-6, and MW-7, indicated that TPH-G and BTEX were not detected in <br /> any of these samples While MTBE was not detected in the groundwater sample <br /> collected from Monitoring Wells MW-6 and MW-7, it was detected in the sample <br /> collected from Monitoring Well MW-5 at a concentration of 510 parts per billion (ppb). <br /> The next quarterly groundwater sampling is scheduled for December 1996 <br /> �y <br /> MVAW 194 273%QU1K 132 RPT[23 Apr eel BMTH <br />