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When the well has recovered to at least 80%, a bottom loading teflon bailer will be lowered down the, <br /> monitoring well to obtain ithe sample. The bailer will be cleaned with a biodegradable soap solution, t�i <br />_ rmsed twice with potable water, and a clean cord will be attached to the bailer prior to use and between " <br /> each monitoring well Once the sample has been obtained, it will be transferred to a laboratory <br /> prepared container, and placed in a cooler for sample preservation A chain-of-custody record will be <br /> strictly maintained for all the laboratory groundwater samples throughout the sampling effort and <br /> laboratory analysis ' <br /> t r <br /> r 1 <br /> ,1 <br /> 4005111 Rev 0 DuPont Enwronmental Remediatson Services A-4 <br /> Punted on Recycled Paper ' <br /> i <br />