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h" KLFINFELDER <br /> The first sample extracted from the probe at each boring location was considered a purge <br /> i <br /> i sample and was not submitted for chemical analysis. The sampling process was repeated <br /> four to five times at each site to obtain sufficient sample volume for the volatile , <br /> constituents analysis. In an attempt to obtain sufficient volume for nonvolatile constituents <br /> f <br /> analysis a disposable bailer was used to retrieve water out of the borings. <br /> } The sampling tip, galvanized pipe and other BAT Probe equipment that was used in the <br /> boring were washed with trisodium phosphate and a distilled water rinse prior io insertion ' <br /> 't. into the next boring. <br /> Ground water samples were labeled, logged onto a chain-of-custody, and stored in an iced <br /> cooler. At the end of drilling operations, ground water samples were delivered under <br /> chain-of-custody documentation to an analytical laboratory certified by the EPA and the <br /> i <br /> State. r <br /> w <br /> i <br /> Lr <br /> FR25-91-22 Page 4 of 7 <br /> Copyright 1991 Kleinfelder,Inc. <br />