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Sequoia 1551llosC aiRoad <br /> Ia3 <br /> San Carlos CA 99070 <br /> �� AnaIytical {650)232 9600 <br /> FAX(650)232-9612 <br /> www sequoialabs cam <br /> cttler-Ryan/Ge0strategies(1) Project Unocal(4) <br /> Sierra Court, Suite J Project Number Former Unocal#5098,Stockton Reported <br /> in CA,94568 Project Manager Deanna Harding 07/01/02 07 46 <br /> Volatile Organic Oxygenated Compounds by EPA Method 82601 <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> alyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> 11�1-10 1,206021-11 Water Sampled 06/10/0211 35 Received 06/11/02 18 05 <br /> -Dibromoethane ND 1 0 ug/1 1 2060021 06/13/02 06/13/02 EPA 9260B <br /> 1,2-Dichloroethane ND 10 <br /> isopropyl ether ND 1 0 ^ <br /> yl tert-butyl ether ND 1 0 ^ „ <br /> thyl tent-butyl ether ND 1 0 <br /> Tert-amyl methyl ether ND 10 <br /> -butyl alcohol ND 20 <br /> „ <br /> rogate 12-Dichloroethane-d4 109% 70-130 ., <br /> Surrogate Toluene-d8 103% 70-130 ^ <br /> -10A 1,206021-12 Water -Sampled 06/10/02 12 00 Received 06/11/02 l8 05 <br /> 1, Dibromoethane ND 10 ug/l 1 2060021 06/13/02 06/13/02 EPA 8260E <br /> 1,2-Dichloroethane ND 10 <br /> Isopropyl ether ND 10 <br /> 1 tert-butyl ether ND 10 <br /> Aethyl tert-butyl ether ND 10 « „ <br /> 1 yl methyl ether ND 10 <br /> sk <br /> 1 alcohol ND 20 <br />-urrogate 1,2-Dichloroethane-d4 110% 70-130 .. <br /> C-19,11 <br /> te Toluene-d8 102% 70-130 <br /> (L206021-13)Water Sampled 06/11/02 10 55 Received 06/11/0218 05 R-05 <br />,2-Dibromoethane ND 50 ug/I 50 2060023 06/14/02 06/14/02 EPA 8260B <br /> JIDichloroethane ND 50 <br /> opropyl ether ND 50 ^ „ <br /> 1 tent-butyl ether ND 50 ^ ^ ^ <br /> lethyl tert-butyl ether NO 50 <br /> amyl methyl ether ND 50 <br /> butyl alcohol ND 1000 <br /> V " ^ <br /> urrogate 1,2-Dichloroethane-d4 100% 70-130 .. <br /> gate Toluene-d8 974% 70-130 <br /> a Analytical- San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 67 of I03 <br />