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19 March 2004 <br /> AGE-NC Project No. 02-0886 <br /> Page 8 of 8 <br /> (1)hour but within eight(8)hours of well evacuation. <br /> 4.4.3. Sample Withdrawal <br /> Water samples will be collected from the monitoring well using a disposable polyethylene bailer or <br /> a dedicated Teflon®tubing used in conjunction with the inertia pump. The bailers are disposed of <br /> after one use and require no decontaminating and the teflon tubing used with the inertia pump is <br /> either dedicated to each well or changed at each sampling event, thereby minimizing cross <br /> contamination due to sampling devices. Samples will be drawn and collected in such a manner that <br /> agitation and exposure of the ground water to the atmosphere is minimal <br /> 4.4.4. Sample Handling <br /> Ground water samples will be collected into laboratory-supplied 40-m1 volatile organic analysis <br /> (VOA) vials containing 0.5 ml of hydrochloric acid as preservative and one-liter amber glass <br /> containers (if appropriate)without a sample preservative. Care will be taken to ensure that visible <br /> air bubbles are not present in the vials after filling and capping. Following collection the samples <br /> will be appropriately labeled,placed on ice and kept in a cooler until delivered to a DHS-certified <br /> analytical laboratory for analysis. Chain-of-custody protocols will be used to document sample <br /> custody transfer from the field to the laboratory; a chain-of-custody form will accompany the <br /> samples. <br /> 4.5. EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br /> All sampling tools used for sample collection, except for disposable bailers, will be thoroughly <br /> rinsed with clean water after being washed with a solution of Alconox. All down-hole drilling <br /> equipment will be pressure washed prior to starting each boring. Cuttings generated during drilling <br /> will be stockpiled under plastic and resinate generated during drilling and ground water sampling <br /> activities will be containerized in properly labeled DOT-approved 55-gallon drums, and stored on- <br /> site in an area lacking public access.Disposal alternatives will be evaluated based on results of soil <br /> and water analysis. <br /> Advanced GeoEnvironmental,Inc. <br />