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819 Striker Ave Ste 8 <br /> Sequoia. Sacramento,CA 95834 <br /> Anal ca (916)921-9600 <br /> FAX(916)921-010 <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA 5212135 <br /> 6747 Sierra Court,Ste J Project Number N/A - _ Reported <br /> Dublm CA,94568 Project Manager Deanna L Harchng 12/27/02 14 14 <br /> Volatile Organic Compounds by EPA Method 8260B -Quality Control <br /> Sequoia Analytical -Sacramento <br /> Reporting - Spike Source %REC RPD <br /> IAnalyte Result Lunt Units Level Result %REC Limits RPD Lmut Notes <br /> Batch 2120259-EPA 5030E[PIT] - <br /> Laboratory Control Sample(2120259-BSI) _ _Prepared_&Ana�zed 12/16/02 <br /> Benzene 8 09 0 50 ug/l 10 0 81 70-130 - <br /> Methyl tert-butyl ether 7 92 2 0 10 0 79 60-140 <br /> Chlorobenzene 104 0 50 too 104 70-130 <br /> i <br /> 1,1-Dichloroethene 8 92 0 50 100 89 70-130 <br /> Toluene 101 0 50 10 0 101 70-130 <br /> Trichloroethene 8 03 0 50 Wo 80 70-130 <br /> Surrogate 1 2-DC4-d4 22 2 25 0 89 60-140 <br /> Surrogate Dibromofluoromethane 226 25 0 90 70-130 <br /> Surrogate 1 2-DCA-d4 222 25 0 89 70-130 <br /> Surrogate Toluene-d8 28 5 25 0 114 70-130 <br /> Surrogate 4-BFB 24 9 25 0 y T100 70-130 <br /> Laboratory, Control Sample(2120259-BS2) Prepared&Analyzed 12/17/02 <br /> Benzene 21 0 0 50 ug/l 25 0 84 70-130 <br /> Methyl cert-butyl ether 195 20 25 0 78 60-140 <br /> Chlorobenzene 27 5 0 50 25 0 110 70-130 <br /> 1;1 1)ichloroethene -- 22 6 0 50-11-25 0 90 70=130 <br /> Toluene 26 6 0 50 " 25 0 106 70-130 <br /> Trichloroethene - -- --21 0 - - 0 50� "- 25W0 - - - - 84— -70-130 - - <br /> Surrogate 1 2-DC4-d4 214 250 86 60-140 <br /> Surrogate Dibromofluoromethane 21 6 25 0 86 70-130 <br /> Surrogate 12-DCA-d4 214 " 250 86 70 130 <br /> Surrogate Toluen' 'e[8 J1 y i �- - 28 8-- 70-130Y <br /> Surrogate 4-BFB _ 250 _ 25 0 - 100 70 130 - - <br /> Matrix Spike(2120259-MSI) _ Source 5212119-01 Prepared. 12/16/02 Analyzed 12/17/02 <br /> Benzene - - - 108 0 50 ug/1 10 0 ND 108 60-140 ^- <br /> Methyl tert-butyl ether 10 9 2 0 10 0 ND 109 60-140 <br /> Chlorobenzene 13 4 0 50 10 0 ND 134 60-140 <br /> ],1-Dichloroethene 11 8 0 50 10 0 ND 118 60-140 <br /> Toluene 13 1 0 50 10 0 ND 131 60-140 <br /> - Trichloroethene 10 6 0 50 10 0 0 58 100 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples anahred in accordance with the chain <br /> of custody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> 100 of 102 <br />