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h'q KLEINFELDER <br /> o The annular space between the pipe and the wall of the boring <br /> will be backfilled with No. 16 Monterey sand as a filter pack <br /> material to approximately 1-foot above the top of the perforated <br /> section. <br /> o A 6-inch bentonite plug will be placed above the sand pack to <br /> provide a seal against surface water infiltration. <br /> o The remaining annular space will be left open to the surface. <br /> o Temporary well covers will be installed at the surface to <br /> protect the wells. The covers will be of 1/2-inch plywood with <br /> a 2" opening for the well head. <br /> o A stainless steel well identification tag displaying pertinent <br /> well information will be attached to the well head. <br /> 3.2.1 Temporary Monitoring Well Development and Sampling Procedures <br /> The monitoring wells will be developed after installation. Each well will <br /> first be sampled with a clear acrylic bailer to visually inspect the <br /> ground water. If no product layer or sheen is observed on the water <br /> samples, the wells will be developed with a surge block/air lift <br /> development tool. Surging with the tool along the screened interval of <br /> the well will be performed to draw the sediment from the formation into <br /> and out of the well, and to set the sand pack. The sediment laden water <br /> will be air lifted or bailed from the well. Each well will be developed <br /> until the discharge water runs relatively clear of fines. Approximately 5 <br /> to 10 well volumes are anticipated for removal from each monitoring well. <br /> The discharged water will be placed in clean, Department of Transportation <br /> approved, 55 gallon hazardous waste drums. Water from each well will be <br /> placed in separate drums, labeled with well identification, and dated. <br /> Disposition of the development water will be by Coca Cola. <br /> 45-88-01 9 <br />