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819 Sinker Ave Ste 8 <br /> Sacramento,CA 95834 <br /> el� Sequoia (916)9219600 � <br /> qW Analytical www <br /> (916) Bibs2 1 c 00 <br /> sequoialabs om <br /> F <br /> Gettler-Ryan-Dublin Project Former Unocal 5098,Stockton,CA 5302592 <br /> 6747 Sierra Court,Ste J Project Number NIA Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 03/10/03 17 17 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3030088 -EPA 50308 JP/T] ' <br /> Blank(3030088-BLK2) Prepared&Analyzed 03/07/03 <br /> Tetrachloroethene ND 030 ugA <br /> Toluene ND 050 <br /> 1,2,3-Trichlorobenzene ND 050 <br /> 1,2,4 Trichlorobenzene ND 050 " <br /> 1,1,1 Trichloroethane ND 050 " <br /> 1,1,2 Trichloroethane ND 0 5o " <br /> Trichloroethene ND 050 <br /> Trichlorofluoromethane ND 050 " <br /> 1,2,3 Tnchloropropane ND 1 0 <br /> 1,2,4 Trtmethylbenzene ND 050 " <br /> 1,3,5 Tnmethylbenzene ND 050 <br /> Vinyl chloride ND 050 " <br /> Xylenes(total) ND 050 " <br /> Surrogate 12-DCA-d4 281 250 112 60-140 _ <br /> Surrogate Dibromolluoromethane 271 250 108 70-130 <br /> c,n-mnnrp r .7 M-A-d4 281 " 250 112 70-130 <br /> Surrogate Toluene d8 277 250 111 70-130 <br /> �Surrogate 4-BFB 25-5 25 0 10270=130 <br /> Laboratory Control Sample (3030088-BSI) Prepared&Analyzed 03/06/03 <br /> - Benzene - -- -_- - ----_ -- -- -- 24 1=— - -0 50 ug/i - - 25 0- ---- = 96- -70-130- - - -- <br /> Chlorobenzene 244 050 250 98 70-130 <br /> 1,1-Dichl oroethene 227 050 250 91 70-130 <br /> '_Toluene-- __ _- _ _ _ _ __ _a 25 7 - 050 - - 250 —- - - 103 - -70-130 - <br /> Tnehloroethene 208 050 25 0 83 70-130 - <br /> Surrogote 1 2-DCA-d4 271 25 U 108 60-140 <br /> Surrogate Dibioniolluorontethane 264 230 106 70-130 <br /> Surrogate 1 2-DCA-d4 27J 250 108 70-130 <br /> Sur rogate Toluene d8 280 2-50 112 70-130 <br /> Surrogate 4 BFB 23 9 250 96 70-i30 <br /> f� <br /> Sequoia Analytical - Sacramento The results in this i epos i apply to the samples analyzed in accordance with the chain of <br /> custody document Unless othertwse stated results are r eported on a wet weight basis _ <br /> This analytical report must be r eproduced in its entirety <br /> Page 120 of 126 <br />