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� Testingand <br /> Materials (ASTM) Methods D 1586-84 for split <br /> barrel sampling of soil and D 1.587-83 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 tubes. The bottom tube will be sealed with <br /> aluminum <br /> foil and plastic end caps, taped and labeled with <br /> the following information: date, time <br /> ID, name of sampler and t , project ZD, sample <br /> be immediatei type of analysis. This sample will <br /> frozen chemical. <br /> into a cooler containingd <br /> A high- ry ice or <br /> low temperature recordingtem <br /> thermometer will accompany sample shipments to ensure proper <br /> temperature maintenance. The samples will be delivered to <br /> i ; a state certified laboratory following under chain-of- <br /> custody protocol within 48 hours <br /> Possible. of sampling, whenever <br /> x... <br /> " Soil in the uppermost brass tube will be described, according <br /> to ASTM standard practice for description and identification <br /> 'xof soils (ASTM D-2488-84). <br /> raphic,If data/interpretations will alsorbeirecorded.geSoilc and ptieoroper <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 <br /> duplicates. These field observations will be re ted onoa log <br /> prepared for each boring/well. <br /> During �- <br /> 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 /> Ng significant changes in litholo <br /> gy and contamination in order to develop a complete a ofillls obvious <br /> contamination. proe of soil <br /> '^ 11.2 Sample Collection During Tank Removal <br /> Soil samples will be collected as soon as possible after <br /> i.„ removal of the tank. Where feasible, all preparations for <br /> soil, sampling will be made prior to tank removal. <br /> samples collected from a backhoe bucket or directly fromsoil 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 samples <br /> is to be taken and the cylinder then <br /> pil <br /> with a wooden mallet, bulk density udriVer,nded or other <br /> decontaminated driving device. No head space will be <br /> present in the cylinder once the sample is collected. Care <br /> will be taken to avoid contamination of both the inside and <br /> outside of the cylinder as well as its contents. During <br />