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21 March 2003 <br /> AGE-NC Project No. 95-0114 <br /> Page 10 of 10 <br /> 4.4.3. Sample Withdrawal <br /> Water samples will be collected from the monitoring well screen using the same lift bailer used for <br /> purging. These bailers consist of 3/8-Inch tube and base check-valve and are disposed of after one <br /> use and require no decontaminating, thereby minimizing cross contamination due to sampling <br /> devices. Care will be taken to ensure that visible air bubbles are not present in the vials after filling <br /> and capping. <br /> 4.4.4. Sample Handling <br /> Ground water samples will be collected into laboratory-supplied containers. Ground water samples <br /> will be collected into 40-m1 volatile organic analysis(VOA)vials containing 0.5 ml of hydrochloric <br /> acid as preservative. Following collection the samples will be appropriately labeled, placed on ice <br /> and kept in a cooler until delivered to the laboratory for analysis. Chain-of=custody protocols will <br /> be used to document sample custody transfer from the field to the analytical laboratory. A chain-of- <br /> custody form will accompany the samples. <br /> Advanced Geo Environmental,Inc. <br />