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MONITORING AND REPORTING PROGRAM -7- <br /> FOR CITY OF STOCKTON <br /> AUSTIN ROAD LANDFILL FACILITY <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> 4. Ground Water Monitoring <br /> Field and laboratory tests shall be reported in the quarterly monitoring reports. All <br /> "Monitoring Parameters" shall be graphed so as to show historical trends at each well. <br /> The ground water surface elevation(in feet and hundredths, M.S.L.) in all wells shall be <br /> measured on a quarterly basis and used to determine the velocity and direction of ground <br /> water flow. This information shall be displayed on a water table contour map and/or ground <br /> water flow net for the site and submitted with the quarterly monitoring reports. <br /> The corrective action monitoring network shall consist of upgradient background monitoring <br /> well MW-2, downgradient monitoring wells MW-12 and MW-13 in the upper water bearing <br /> zone. Downgradient shallow compliance wells are MW-1 and MW-4. Downgradient deep <br /> compliance wells are MW-6 and MW-7. Downgradient extraction wells are EW-1 and <br /> EW-2. Located adjacent to the extraction wells, are observation wells to determine hydraulic <br /> effects of ground water extraction on the shallow water-bearing zone and as such these wells <br /> are not presently part of the water-quality monitoring network. Other downgradient <br /> monitoring points consist of wells MW-10, MW-11, and MW-14. Locations of these wells <br /> are shown on Attachment B. Ground water samples shall be collected from all wells at the <br /> frequencies and analyzed for the parameters specified in Table H. As LF-2 is constructed, <br /> wells MW-3 and MW-5 will be destroyed and replaced by wells MW-3A and MW-5A which <br /> along with MW-2,will serve as upgradeint background wells. <br />