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Ile 19 November 1999 <br /> AGE-NC Project No 99-0657 <br /> Page 10 of 10 <br /> I4 6 3 Sample Withdrawal <br /> Water samples will be collected from the monitoring wells using a disposable polyethylene bailer <br /> These bailers are disposed of after one use and require no decontaminating,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 groundwater to the atmosphere is minimal Sample containers will be <br /> I <br /> filled using the appropriate disposable sampling attachment which allows controlled flow out of the <br /> bottom of the bailer by lifting up on the check valve <br /> I4 6 4 Sample Handling <br /> I Ground water samples will be collected into laboratory supplied containers Ground water samples <br /> for TPH-g, BTEX and fuel oxygenates analyses will be collected into 40-m1 VOA vials containing <br /> 0 5-ml of hydrochloric acid as preservative Samples for TPH-d analysis will be collected into <br /> laboratory-supplied, 1-liter amber bottles Following collection the samples will be properly labeled <br /> and placed on ice and kept in a cooler until delivered to the laboratory for analysis Chain-of-custody <br /> protocols will be used to document sample custody transfer from the field to the analytical <br /> Ile laboratory A chain-of-custody form will accompany the samples <br /> 4 7 EQUIPMENT DECONTAMINATION <br /> I All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rinsed with clean water prior to each sampling location All probing rods will be cleaned prior <br /> to advancement at each probe boring location Hollow-stem augers will be steam-cleaned prior to <br /> Ieach boring <br /> 48 BORING ABANDONMENT <br /> All soil probe borings and soil borings not completed as monitoring wells will be permanently sealed <br /> to prevent vertical migration of potential contaminants Soil borings shall be abandoned by <br /> backfilling with bentonite or cement-bentonite slurry from the total depth to surface grade The PHS- <br /> EHD will be notified for grout inspection at least 48 hours prior to conducting grouting procedures <br /> I <br /> f <br /> I <br /> Advanced GeoEmironmental,Inc <br /> f <br />