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819 Sinker Ave Ste B <br /> Sacrain <br /> min,CA 95834 <br /> 4D Sequoia (916)921-9600 <br /> FAX(916)921-0100 <br /> iWAnalytical wvw sequoialaba Bain <br /> Gettler-Ryan-Rancho Cordova Project Former Unocal 0187,Stockton,CA S212554 <br /> 3140 Gold Camp Dr,Ste 170 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager David Herzog 01/03/03 16 34 <br /> Total Purgeable Hydrocarbon,BTEX and MTBE by DHS LLIFT-Quality Control <br /> Sequoia Analytical-Sacramento <br /> Reporting Spike Source "/"REC RPD <br /> byte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Bateb 2120462-EPA 5030B /T <br /> Blank 2120462-BLKI aced&Anal ed 12/28/02 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 20 " <br /> Surrogate a,a a-Trifluorotoluene 106 100 106 60440 <br /> Blank 2120462-BLK2 aced&Anal ed 12/27/02 <br /> Purgcable Hydrocarbons ND 50 ug/l <br /> Benzene ND 050 " <br /> WaluND 050 n <br /> EthyZ.. ND 050 <br /> Xylenes(total) ND 050 " <br /> Methyl tert butyl ether ND 20 " <br /> Surrogate aa a-Trifluorotoluene 995 100 100 60-140 <br /> Blank 2120462-11LK3 nred&Anal ed 12/30/02 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene <br /> ND 050 " <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 20 " <br /> Surrogate a a a-Trifluoratoluene 105 100 105 60-140 <br /> Blank 2120462-BLK4) preVared&Analyzed 12/30/02 <br /> Purgeable Hydrocarbons ND 50 ugtl <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> 7'his analytical report murt be reproduced m its entirety <br /> Page 6 of 9 <br />