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c-a <br /> Testing and Materials (ASTM) Methods D 15B6-84 for split <br /> . barrel sampling of soil. and 0 1587-83 for t;lin-walled tube <br /> sampling of soils. The blows required to dr,ve the sampler <br /> �. each six inch interval will be recorded on the boring log. <br /> The sampler will be removed from the boring and opened to <br /> reveal the brass tubes. The bottom tube will be sealed with <br /> aluminum .`.oil and p7_ast4c end caps, taped and labeled with <br /> the following information: date, time, project ID, sample <br /> ID, name of sampler and type of analysis. This sample will <br /> be immediately placed into a cooler containing dry ice or <br /> frozen chemical. A "high-low" temperature recording <br /> thermometer will accompany sample shipments to ensure proper <br /> temperature ;maintenance. The samples will be delivered to <br /> a state certified <br /> protocol within laboratory <br /> hoursoffollowing <br /> custody p sampling, whenever <br /> possible. <br /> Soil in the uppermost brass tube will be described according <br /> to ASTM standard practice for description and identification <br /> of soils (ASTM D-2486-84) . Stratigraphic, genetic and other <br /> data/interpretations will also be recorded. Soil properties <br /> may also be determined from the middle brass tube and from <br /> the sampler shoe. Alternatively the second sample tube may <br /> be used with the uppermost tube for preparation of <br /> duplicates. These field observations will be noted on a log <br /> prepared for each boring/well. <br /> During sampling, latex gloves will be worn to prevent cross <br /> contamination with other samples. The disposable gloves <br /> will be discarded after collecting samples from each 18-inch <br /> t <br /> sample drive. <br /> Soil samples will be collected at five fact intervals, at <br /> significant changes in lithology and intervals of obvious <br /> op a complete profile of soil <br /> contamination in order to devel <br /> contamination. <br /> 11.2. Sample collection During Tank Removal <br /> Soil samples will be collected as soon as possible after <br /> removal of the .tank. Where feasible, all preparations for <br /> soil sampling will be made prior to tank removal.. $oil <br /> samples collected from a backhoe bucket or directly from the <br /> excavation floor will be collected in a thin-walled <br /> stainless steel or brass cylinder at least three inches long <br /> by one inch in diameter. From 3 to 24 inches of soil will <br /> be removed from the immediate surface area where the sample <br /> is to 'be taken and the cylinder then pounded into the soil <br /> with a wooden mallet, bulk density driver, or other <br /> decontaminated driving device. No head space will e <br /> present in the cylinder once the sample is collected. Cabe <br /> will be taken to avoid contamination of both .the inside and <br /> outside of the cylinder as well as its contents. During <br />