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y <br /> .T <br /> 12 September 2008 <br /> AGE-NC Project No. 98-0440 <br /> Page 6 of 6 <br /> 3.43. .Sample Withdrawal <br /> �E <br /> Water samples will be collected from the monitoring well using a disposable polyethylene bailer or <br /> tubing connected to a Wattera inertia pump. Bailers are disposed of.after one use and require no <br /> decontaminating,thereby minimizing cross contamination due to sampling devices.Wattera tubing <br /> is dedicated to the specific well and also require no decontaminating. Samples will be drawn and <br /> collected in such a manner that agitation and exposure of groundrwater to the atmosphere is minimal. <br /> Sample containers will be filled using the appropriate disposable sampling attachment which allows <br /> controlled flow out of the bottom of the bailer by lifting up on.the check valve. <br /> 3.4.4. Sample Handling <br /> Ground water samples will be collected into laboratory-supplied containers. Ground water samples <br /> for TPH-g and BTEX analyses will be collected into 40-m1 volatile organic analysis (VOA)vials <br /> without a preservative. Samples for TPH-d analysis will be collected into I-liter amber glass <br /> containers without a preservative.Following collection,the samples will be placed on ice and kept <br /> in a cooler until delivered to the laboratory for analysis. Chain-of-custody protocols will be used to <br /> document sample custody transfer from the field to the analytical laboratory. A chain-of-custody <br /> form will accompany samples. <br /> 3.5. EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> I and rinsed with clean water prior to each sampling location.All'augem and rods will be cleaned prior <br /> to advancement at each boring location. Hollow-stern augers <br /> '; ill be steam-cleaned prior to each <br /> boring. <br /> s <br /> i <br /> I <br /> k <br /> Advanced GeoEnvironmental,Inc. <br /> i <br />