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7--11/Stockton 10 <br /> April 1989 <br /> located in the driveway or paved areas. For the well <br /> located in open field area southeast of the site, a <br /> stove pipe-type protective cover will be installed. <br /> Monitoring wells will be constructed as described and <br /> as shown on Figure 5. The well casings will be sealed <br /> with locking, water-tight caps to prevent the entrance <br /> of surface water into the wells. <br /> The mesal#,,ring ,well., xiest�t will be constructed in a <br /> similar manner as the individual monitoring wells. An <br /> initial boring will be advanced to approximately 65- <br /> feet, which is the anticipated aquitard depth, as <br /> established in previous investigations. Continuous <br /> cores will by collected fro-n the initial boring which <br /> will be examined to determine completion depths for <br /> ^ each well within the nest. one deep well will be <br /> installed in the initial boring. Subsequently, two <br /> additional borings will be made to complete a total of <br /> three wells within the nest. The screened intervals <br /> for the two deeper borings will be approximately 5 feet <br /> in length and will be staggered in depth of completion <br /> to monitor discrete areas of the aquifer. The: third <br /> well will be installed to a depth of approximately <br /> 15-feet below the water liable, to monitor the upper <br /> zone. Monitoring-well nest construction is depicted on <br /> Figure 6. <br /> A11 drilling and groundwater monitoring well <br /> installations will be conducted in accordance :pith the <br /> - State of California and local regulations. in <br /> addition, these activities will be conducted in <br /> accordance with GTI's Standard operating Procedures <br /> (Appendix I, sops 11, 14 and 15) . <br /> GRoL'%'DR'AT£R <br /> _ TFcH.uOLOGV,Inc. <br />