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it"m <br /> am-,M <br /> YY <br /> Testing and Materials (ASTM) Methods D 1586-84 for split <br /> barrel sampling of soil and D 1587-83 for thin-walled tube <br /> sampling of soils. The blows required to drive 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 tubas. The: bottom tube will be sealed with <br /> aluminum foil and plastic 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 proprr <br /> temperature maintenance. The samples will be delivered to <br /> a state certified laboratory following underwwhenever <br /> custody protocol within 48 hours of sampling, he a <br /> possible. <br /> soil in the uppermost b-.ass tube will be described according <br /> to ASTM standard pract'.ce for description and identification <br /> of soils (ASTM D-24BB-34) . 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 sampletub preparation mof <br /> ay <br /> be used with the uppermost tube for <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 /> sample drive. <br /> Soil samples will be collected at five foot intervals, at <br /> significant changes in lithology and intervals of obvious <br /> contamination in order to develop a complete profile of soil <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. Soil <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 diar„iter. 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 iretothe o oil <br /> with a wooden mallet, bulk density driver, o <br /> ther <br /> decontaminated driving device. No head space will be <br /> present in the cylinder once the sample is collected. Care <br /> will be avoid <br /> outside of the ocyl cylinder contamination <br /> well as its <br /> tsb inside contents. During <br />