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41 i <br /> ` r 404 N Wget Lane <br /> 94598 <br /> _Sequoia Walnut Creek, 98 -9600 <br /> 4 -T n (925)988-9600 <br /> - � -- FAX(925)988-9673—�.�- <br /> ! Analytical n www sequoialabs corn <br /> Gettler Ryan,Inc -Dublin Project Tosco` <br /> : f <br /> 6747 Sierra Court Suite J Project Number Tosco# 11194 Reported <br /> Dublin CA,94568 Project Manager Doug Lee • . 04-Jan-01 10 30 <br /> Volatile Organic Compounds by EPA Method 8260B,- Quality Control= <br /> Sequoia Analytical -_Walnut Creek,,- <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Ltmtt Units Level' , Result %REC Limits RPD Lieut Nates <br /> Batch OL18009-EPA 5030B [PIT] - v- 73 n_ <br /> Matrix Spike Dup(OL]8009-MSD1) Source W012299-06 Prepared&Analyzed 18-Dec-00 <br /> 1,1-Dichloroethene 590 20 ug/1 700 ND 843 60-140 345 25 <br /> Methyl tent-butyl ether 45 0 2 0 500 ND 900 60-140 220 25 <br /> Benzene 580 2 0 500 ND 4 116 60-140 0 25 <br /> Trichloroethene 580 '4. <br /> " 2 0 500 'ND 116 60-140 174 25 <br /> Toluene 600 i 2 0 500 ND 120^ 60-140 0 25 <br /> Chlorobenzene 580 20 500 ND 116 60-140 351 25 <br /> f N <br /> Surrogate Dibromofluoromethane 490 -` " ' ` ' 50 0' 980 '50-150 <br /> Surrogate 1 2-Dic1loroethane-d4 480 500 960, 50-150 <br /> Surrogate Toluene-d8 _ - 48 0' -' "' 50 0 - r 960 50-150 <br /> Surrogate 4-Bromofluorobenzene ,460 " Soo 920 50-150 <br /> f a <br /> i <br /> t <br /> ` 3M <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document This analytical report must he reproduced in its entire <br /> Page 19 of 25 <br />