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�R � <br /> INTER-OFFICE CORRESPONDENCE Western ResoarchlCenter-Richmond <br /> ' Location: RICHMOND From: D. G.! Graham 4/16/67 <br /> { S. C., Leung <br /> 1 To: L. H. Hall Subject: Arialysiis of <br /> soil Samples <br /> Collected 3/30/67 at <br /> Copy: D. J. Brookman Stockton Ragu Plant ; <br /> R. Defenbaugh ! '� <br /> L. Erickson { <br /> u.lr Yoneshige <br /> .r <br /> I <br /> ` Analyses have been completed of soil "les collected at the <br /> Stockton Ragu Plant 3/30/87 from three borings, one through the <br /> tank site (designated R-1) and two at a distance of about 10 ft <br /> r on either side of the tank (R-2 and R-3) Diesel fuel, at levels ] <br /> ranging from 14000 to 61000 uq/q and xylenes it levels ranging #1 <br /> from 0.4 to 22 ug/g were found in all samplesltfrom R-1. Dome", <br /> toluene and ethyl benzene were detected in some samples from R-1 <br /> # at levels ranging from 0.7 to 4.4 ug/g. lNo chlorobenzene or <br /> dichlorobenzenes were detected in any samples at a limit of <br /> I ; detection of 0.1 ug/g. No aromatic volatile organics were <br /> detected in any samples from R-2 or R-3;'ldiesel was detected in <br /> t only one sample from R-3 at a level of 3ug/9. No halogenated <br /> volatile organic compounds were detectadlia the four samples <br /> analyzed at a limit of detection of to <br /> Saa�plina �� � l <br /> h <br /> sampling locations are described on the 'attached map. soil - <br /> samples were collected from three holes;' one1drilled through the <br /> r tank site (designated R-1) and two at a distancs of about 10 ft <br /> on either side of the tank (R-2 and R-3)1. Samples were collected <br /> i in brass tubes which had previously been cleaned with soap and <br /> water, rinsed With solvont, and oven dried. After collection, <br /> the ends of the tubes were covered with foil and the tubes were <br /> transported to the laboratory. Samsplea ''(still in the brass <br /> tubes) were frozen at the time of collection and were stored <br /> frozen. After re:uaval from the brass tubes ##the soil was not <br /> homogenized before sub-sampling in order to avoid loss of <br /> volatile materials. if k <br /> Analytical Methods <br /> i Analyses were carried out for three different sets of analytes: <br /> 1) aromatic volatile organics specifie& in EPA Method 8020, 2) j <br /> diesel fuel, by a modified EPA Method 8015, 'and 3) halogenated II <br /> volatile organics specified in EPA Method 8010. Methods for each <br /> type of analysts are described briefly below". <br /> Illttt <br />