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1 Mobilize properly licensed auger rig & support truck <br /> Equipment to include sufficient hollow-stem auger flights to <br /> complete each soil boring/monitor well without having to decon- <br /> taminate equipment_ Depending upon type of coring equipment and <br /> casing size, augers will be either 8 1/4" OD or 10 1/4" OD <br /> 2 Rig will be equipped with either a conventional rod driven <br /> assembly or wireline operated continuous coring device designed <br /> to hold a standard California Modified split spoon sampler. The <br /> core barrel will be thoroughly decontaminated between cores with <br /> Alconox or TSP, rinsed with clean tap water, and a final rinse <br /> with distilled or deionized water. Metal tubes used for con- <br /> taining core material will either be new or have been thoroughly <br /> cleaned prior to use. <br /> 3 After retrieving the core barrel, it will be placed on a <br /> clean surface & carefully opened. Approximately 4 ounces of the <br /> cored material will be placed in a sealed plastic bag, and set <br /> aside for 5 - 10 minutes to allow any vapors to volatize. The <br /> probe of a properly field calibrated PID meter will be inserted <br /> into the bag, any readings will be recorded on appropriate forms_ <br /> 4. The retrieved core will be quickly described, and the ends of <br /> one metal tube promptly covered with teflon tape & plastic end <br /> caps, thoroughly sealed with duct tape, labeled, & placed on ice <br /> pending transport to FGL Laboratory for analysis. All unused <br /> core material & drill cuttings will be placed in properly labeled <br /> drums, firmly sealed, and stored on site pending results of <br /> laboratory analysis. <br /> 5 Soil borings # 6 & 7 will be advanced to within 5' of the <br /> water table, at which point a final core will be taken. While <br /> that core is being analyzed, described, & preserved, a hydropuncb <br /> or BAT tool will be made up preparatory to obtaining a water <br /> sample. The tool will be thoroughly decontaminated before use as <br /> directed by the geologist in charge. It will then be lowered <br /> into the auger flights, and pushed into the soil beneath the <br /> augers far enough to penetrate the water table. The tool will <br /> then be opened, and will remain open long enough to allow the <br /> collection of a discrete water sample. The tool will then be <br /> retrieved, carefully opened, and the contained water will be <br /> placed in properly treated glass vials, sealed and preserved <br /> pending transport to the laboratory for analysis. Any remaining <br /> water will be placed in suitable containers, properly labeled, <br /> and stored on site pending laboratory results. <br /> 6_ At the completion of sampling operations, both soil borings <br /> will be thoroughly grouted from bottom to the surface with a <br /> cement/bentonite slurry pumped in the hole by use of a tremie <br /> 6 <br />