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i 'tl <br /> c <br /> drilling rate, blow counts, sample number and depth, a description of the soil type, OVA <br /> readings, and other observations made during drilling. <br /> During drilling activities, soil cuttings will be placed on plastic sheeting and placedlinto 55 <br /> gallon drums. The drums will be stored on site pending analytical results of the soil 'samples. I <br /> El If required, the soil cuttings will be disposed at an approved disposal facility. <br /> B.2 GROUNDWATER SAMPLING PROCEDURES <br /> Depth to groundwater will be measured in any well to be sampled using an electronic water level <br /> sounding probe to the nearest 0.01 foot from the top of the well casing. Depth to water will be. <br /> recorded on a groundwater sampling log. If free-phase hydrocarbon product is not observed in <br /> the well, three to five casing volumes of groundwater will then be purged from the wells. <br /> Purging will be conducted in such a way to minimize spillage. Plastic sheeting will be placed <br /> around the well and sampling area to prevent groundwater from contacting the ground surface. <br /> During purging, temperature, specific conductance, pH, and turbidity of the extracted <br /> groundwater will be measured and recorded for every half casing volume extracted. 'Samples <br /> will be collected using a disposable Teflon bailer after temperature and conductivity have <br /> stabilized to within 10 percent or less of the previous successive measurement andjpH has <br /> r 1 stabilized to within ± 0.5 units. These measurements are used to confirm that the wells are <br /> L purged sufficiently. If the well is purged dry, it will be allowed to recover to at least 80 percent <br /> of its original static level before it is sampled. <br /> LSampling will be performed using a disposable Teflon bailer suspended from', a new <br /> monofilament line. Water samples will be collected from each well in sample bottles provided <br /> L1 by the laboratory. The samples will be collected such that no headspace is present in the sample <br /> L' bottle. At least two sample bottles will be filled from each sample. The preservatives necessary <br /> for the analyses will be provided by the laboratory. <br /> LIf free•phase product is detected in the well, the product will be removed from the well using <br /> disposable Teflon bailer until the well is bailed dry or four bails of free product are.removed. <br /> The product will be placed in 55-gallon drums. Records of the volume of product removed from <br /> the wells will be maintained. <br /> UA trip blank prepared by the laboratory will accompany the water samples throughout their <br /> collection and shipment. One field (equipment) blank will be collected each day after <br /> �3 decontamination of the sampling equipment is completed. The groundwater samples will be <br /> L placed on ice or ice substitute in a portable cooler immediately after collection. Samples will <br /> be shipped overnight to the laboratory. <br /> f <br /> B-2 <br /> } k <br />