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Sequoia <br /> 819 Sinker Ave Ste 8 <br /> Se uoia Sacramento 92 45834 <br /> 96M <br /> ID1 (9i 6)921 A600 <br /> FAX(916)921-0100 <br /> 4WAnalytical www sequouulebs cam <br /> Gettler-Ryan-Rancho Cordova Project Former Unocal 0187,Stockton,CA S211681 <br /> 3140 Gold Camp Dr,Ste 170 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Ruse 12/13/02 20 19 <br /> Total Purgeable Hydrocarbon,BTEX and MTBE by DHS LUFT-Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source "/.REC RPD <br /> phyte Result Lmut Units Level Result %REC Limits RPD Luntt Notes <br /> Batch 2120085-EPA 5030E <br /> Blank 2120085-BLK1Prepared&Anal d 12/04/02 <br /> Purgcable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tent-butyl ether ND 25 " <br /> Surrogate a a a-Tri luorotoluene 920 100 92 60-140 <br /> Blank(2120085-BLK2) Prepared&Analyzed 12/05/02 <br /> Purgeable Hydrocarbons ND 50 ug/l <br /> Benzene ND 050 " <br /> Wnlucne ND 050 <br /> thylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert butyl ether ND 25 " <br /> Surrogate a a a-Tris luororoluene 110 100 110 60-140 <br /> Blank 2120085-BLK3 Prepared&Anal ed 12/05/02 <br /> Purgeable Hydrocarbons ND 50 ug,7 <br /> Benzene ND 0 50 " <br /> Toluene ND 050 " <br /> Ethylbeuzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyi ten butyl ether ND 25 " <br /> Surrogate a a a-Trijluorotoluene 110 100 110 60-140 <br /> Laboratory Control Sample(2120085-BS1) Prepared&Analyzed 12/04/02 <br /> Benzene 934 050 U911 loo 93 70-130 <br /> Toluene 895 050 loo 90 70-130 <br /> Ethylbenzene 830 050 100 83 70-130 <br /> Xylenes(total) 25 5 050 300 85 70-130 <br /> Methyl tent-butyl ether 490 2 5 too 48 70-130 Q-LIM <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> . This analytical report must be reproduced in its entirety <br /> Page 6 of 9 <br />