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r - <br /> �, 19 July 2005 <br /> AGE-NC Project No. 95-0135 <br /> Page 9 of 9 <br /> Lo <br /> or dedicated teflon tubing used in conjunction with an inertia pump.The bailers are disposed of after <br /> one use and require no decontamination, and the teflon tubing used with the inertia pump is either <br /> dedicated to each well or changed at each sampling event,thereby minimizing cross-contamination <br /> due to sampling devices. Samples will be drawn and collected in such a manner that agitation and <br /> Lo exposure of the groundwater to the atmosphere are minimal. <br /> r <br /> ii. 4.4.4. Sample Handling <br /> ( Ground water samples will be collected into laboratory-supplied containers. Ground water samples <br /> m+ to be analyzed for TPH-g,BTEX,and fuel additives will be collected into 40-milliliter(ml)volatile <br /> organic analysis (VOA) vials containing 0.5 ml 18% hydrochloric acid solution as a sample <br /> i preservative. Following collection, the,samples will be placed on ice and kept in a cooler until <br /> delivered to the laboratory for analysis.Chain of custody protocols will be used to document sample <br /> custody transfer from the field to the analytical laboratory.A chain of custody form will accompany <br /> { the samples. <br /> " 4.5. EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br /> i.� <br /> All sampling tools used for sample collection, except for disposable bailers, will be thoroughly <br /> I LW 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 and rinse water generated <br /> during drilling and ground water sampling activities will be containerized in properly labeled,DOT- <br /> approved,55-gallon drums and stored on-site in an area lacking public access.Disposal alternatives <br /> will be evaluated based on the results of soil and ground water analyses. <br /> r <br /> w _ - <br /> �"' Advanced GeoEnvironmental,Inc. <br />