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xtIT�ER-OFFICE CORRESPONDENCE western Research Center-Richmond <br /> From: D. G. Graham 4/16/87 <br /> I,pc� ian: RICHtdOND S. C. Leung <br /> To: L. H. Hall Subject: Analysis of l <br /> Soil Samples <br /> Collected 3/30/87 at <br /> Copy: <br /> D. �, Brookman: Stockton Ragu Plant <br /> Cop <br /> R. Defenbaugh <br /> L. Erickson <br /> v3� Yoneshige <br /> S--uIrsrn a4Y <br /> Analyses have been completed of soil samples colonetthroughhthe <br /> S;;ockton Ragu Plant 3/30/87 from three borings, ft <br /> tank site (designated R-1) and twa at a distance <br /> Diesslofuel,�uatllevels <br /> on either side of the tank (R-2 and <br /> RxylenQs at levels ranging <br /> ranging from 14000 to 61000 ug/g and <br /> from 0.4 to 22 ug/ were found in all samples from R-1. Benzene, <br /> toluene and ethyl benzene were detected imles Noso �oYabenzenerom or R-1 <br /> at levels ranging from 0.7 to 4.4 ug/g• <br /> dichlorobenzenes were detected <br /> in any <br /> volasamples <br /> oat a limit <br /> Of <br /> detection of 0.1 ug/g. <br /> 3diesel was +detected in <br /> detected in any <br /> lR-3fatmaRlevel of 30 ug/g. No halogenated <br /> only one samplefrom <br /> ere defeated in four samples <br /> volatile organic compounds w <br /> analyzed at a limit of detection of 10 ug/g• <br /> ` Sano in <br /> sampling locations are described on the attached :nap. Soil <br /> samples were ee <br /> (deSignateddRfl)mand rtwo atea�distance one lofdabout u10 ft <br /> gh e <br /> tank site <br /> on either side of the tank (R-2 and R-3) . Samples were collected <br /> in brass tubes which had previously been cloaned with soap and <br /> water, rinsed with solvent, and oven dried. After collection, <br /> the ends of the tubes were covered with fail and the tubes were <br /> the brass <br /> transported to the at the time Ofacollecles tionland nwere stored <br /> tubes) were frozen at th <br /> frozen. After removal from the brass tubes, the soil was not <br /> homogenized before stab-sampling in order to avoid loss of <br /> volatile materials. <br /> nal tcical Methods <br /> Analyses were carried out for three different sets of analytes: <br /> 1) aramatic volatile organics specified in EPA Method 8020, 2) <br /> b a modified EPA Method 8015, and 3) halogenated <br /> --- - - ---- - diesel-fuel, -y- - <br /> - - - <br /> Volatile organics sp�ci.fied-in EriA-Method-8010.- Methods_-for each <br /> type of analysis are described briefly below. <br /> A*rI :Ifl►If�T plc t <br />