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pre-cleaned brass tubes. <br /> 5) Preserve soil in the middle brass tube by covering both ends with aluminum foil, <br /> capping, and sealing with tape. <br /> 6) Label and log soil samples on a chain-of-custody form. <br /> 7) Store the samples under ice and transport the samples in a chilled container to a <br /> State certified Iaboratory for analysis. Soil samples will be analyzed for TPH as <br /> gasoline and volatile aromatics(BTE&X),in accordance with EPA methods 8015 and <br /> 8020, respectively. <br /> 8) Log auger returns in accordance with the Unified Soil Classification System. <br /> 9) Monitor auger returns and soil sample duplicates for the presence of volatile organics <br /> using a photo-ionization detector (PID) pre-calibrated to isobutylene. <br /> 10) Decontaminate sampling equipment in an alconox solution and rinse twice with water <br /> prior to each sampling run. <br /> 11) Steam-clean auger flights after drilling. j <br /> 12) Place soil cuttings in 55-gallon DOT drums and store on-site pending analytical <br /> • results. <br /> 13) Backfill the boring using a concrete-bentonite slurry in the entire depth of the boring. <br /> 14) Result of the above investigation will be included in Quarterly Report(QR). The QR <br /> will be signed by as Registered Geologist. <br /> The opportunity to prepare this work plan is greatly appreciated. If you have any questions <br /> or comments, please contact our office. <br /> Sincerely, <br /> GEOLOGICAL AUDIT SERVICES, INC. <br /> b Marty <br /> Project Manager <br /> • (3-Wgia1 A.W S.,,kK I- <br /> 690.1QWW71nq NPL ADD 5 <br />