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i <br /> i <br />' working to Restore Nature <br />' Summary of Results and Discussion <br />' A summary of the analytical results from current and past well samplings is presented in <br /> Table 1 Based on the water level data for June 21, 1994, (Table 1), RESNA has <br /> interpreted the groundwater gradient and flow directions for the upper and lower aquifers, <br />' as shown on Plates 3 and 4, respectively In the local upper aquifer, the groundwater level <br /> rose an average of 0 08 foot, ranging from 0 04 foot in well MW-7 to 0.13 foot in well <br /> MW-5 In the local lower aquifer, the groundwater level rose an average of 0 15 foot, <br /> ranging from 010 foot in well MW-2 to 0 20 foot in well MW-3 The apparent groundwater <br /> flow direction in the local upper aquifer is southeasterly at a gradient of approximately 0 006 <br /> (Plate 3) The apparent groundwater flow direction in the local lower aquifer is <br />' southeasterly at a gradient of approximately 0 004 (Plate 4) <br /> Laboratory analyses of the water samples collected from well MW-5 before and after <br />' pumping on May 5, 1994, (samples MW-5A and MW-513) indicated TPHg and BTEX were <br /> not detected in these samples Laboratory analyses of water samples collected on June 21, <br /> 1994, indicated that TPHg and BTEX were not detected in any of the sampled monitoring <br /> wells Wells MW-3 and MW-4 were not sampled because they are located upgradient of <br /> the underground storage tanks, and historically TPHg and BTEX have not been detected <br /> in the groundwater from these wells. The next quarterly groundwater sampling is scheduled <br /> for September 1994 <br /> Reporting Requirements <br /> RESNA recommends a that copy this report be forwarded by Quik Stop Markets, Inc, to <br /> the following agencies <br /> Mr Michael Collins, R E H S <br /> Environmental Health Specialist <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br />' P 0 Box 2009 <br /> Stockton, California 95201 <br />' Ms Elizabeth Thayer <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California 95827-3098 <br /> F7132 94/Q24 3 <br />