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stainless steel tube was driven with a rubber mallet into the newly exposed soil surface and filled <br />' completely so that no headspace remained in the tube at either end. Immediately after filling, <br /> each end of the tube was covered with aluminum foil and a plastic cap, and sealed with duct <br /> tape. We samples were labeled with the project name, time, date, sample identification number <br /> and sampler's initials, and placed in a plastic bag. All samples were stored on ice in a cooler <br />' chest while in transit to the laboratory. Chain-of-Custody documentation was maintained for all <br /> samples. <br /> 4.3 Soil Sampling Below Removed Product Lines <br />' Sampling of the soil beneath the removed product lines took place on July 29, 1993. Roux <br /> collected five soil samples from the bottom of the product line trenches at locations selected by <br /> Mr William Snavely of the PHS-EHD (Figure 3, L1 through 1-5) All of the samples were <br /> collected at a depth of about 4 ft. bgs. The product line samples were collected in stainless steel <br /> tubes and prepared for transport to the laboratory in the same manner utilized when sampling <br /> the sidewalls of the former tank cavity. <br /> 1 <br />' 44 Water Sampling in the Tank Cavity Excavation <br /> To facilitate the installation of the new USTs, Hydro-chem, Inc., of San Francisco, California, <br /> pumped approximately 4,500 gals. of water from the tank cavity excavation on July 23, 1993 <br /> rUpon completion of pumping on July 23, 1993, Roux collected a sample of the standing water <br /> in the tank cavity excavation. A disposable polyethylene bailer was lowered into the standing <br />' water, filled and brought to the surface. The water was decanted from the bawler into three 40- <br /> milliliter volatile organic analysis (VOA) vials. These VOA vials were labeled and stored on <br />' ice in a cooler chest while in transit to the laboratory <br />' 4 Doc #AIS9W01 17 <br />