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L <br /> Testing and %4ater-,313 ( ASTM) -ethods D <br /> barrel sampli158b-8-t for spit <br /> r�y of soli and D 1587-83 for thin-wailed tube <br /> sampling of soils. The blows required to drive the sampler <br /> each six inch -intarval will, be recorded on the boring log <br /> The sampler till be removed from the boring and opened to <br /> reveal the brass tubes The bottom tube gall be Sealed with <br /> aluminum foil and plastic end caps, taped and labeled Frith <br /> thr following information: date, time, prOlect ID, sample <br /> ID, name of sampler and type of analysis Th-, s sample will <br /> be -immediately placed into a cooler containing dry ice or <br /> frozen chemical A "high-low" temperature recording <br /> thermometer .gill accompany sample shipments to en_•tre proper <br /> temperature maintenance. The samples will be de .ivered to <br /> a state certified laboratory following under chain-of- <br /> custody protocol 4ithin 48 hours of 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-2483-84 ) , Stratigraphic, genetic and other <br /> data/interpretations .gill also be recorded. goal properties <br /> Tnay 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 /> sample drive. <br /> Soil samples will be cul lected at five foot intervals, a4 <br /> significant changes in lithology and intervals of obvious <br /> contamination in order to develop a complete profile of soil <br /> contamination. <br /> i1 2 Sample Collection During Tank Removal <br /> SO11 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 Moor 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 _aken and the .:ylinder then pounded into the soil <br /> with a wooden mallet, bulk density driver, or other <br /> decontaminated driving device. NO head space will be <br /> present in the cylinder once the sample is collected. Care <br /> will he taken to avOld contamination of both the inside and <br /> outside of the cylinder as well as its contents. During <br />