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22 September 2009 <br /> AGE-NC Project No. 09-1692 <br /> Page 11 of 11 <br /> Drums containing purge water will be stored on-site pending appropriate removal and disposal. <br /> 5.5.3. Sample Withdrawal <br /> Water samples will be collected from the monitoring well using dedicated Waterra polyethylene <br /> tubing or a disposable polyethylene bailer. The tubing,which is dedicated to each individual well <br /> and replaced periodically(usually annually) and bailers, which are disposed of after one use and <br /> require no decontaminating, thereby minimizing cross contamination due to sampling devices. <br /> Samples will be drawn and collected in such a manner that agitation and exposure of the ground <br /> water to the atmosphere is minimal. Sample containers will be filled using the appropriate disposable <br /> sampling attachment which allows controlled flow out of the bottom of the bailer by lifting up on <br /> the check valve. <br /> 5.5.4. Sample Handling <br /> Ground water samples will be collected into laboratory supplied containers. Ground water samples <br /> to be analyzed for TPH-d and BTEX will be collected into 40-m1 VOA vials and 1-liter amber <br /> bottles as appropriate for the required analyses,both without preservative.Following collection,the <br /> samples will be placed on ice and kept in a cooler until delivered to the laboratory for analysis. <br /> Chain-of-custody protocols will be used to document sample custody transfer from the field to the <br /> analytical laboratory. A chain-of-custody form will accompany the samples. <br /> 5.6. 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 /> and rinsate generated during drilling and ground water sampling activities will be containerized in <br /> properly labeled DOT-approved 55-gallon drums,and stored on-site in an area lacking public access. <br /> Disposal alternatives will be evaluated based on the results of soil and water analysis. <br /> Advanced GeoEnvironmenlal,Inc. <br />