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Sequoia 1551 1ndustnal Rcad <br /> IQSan <br /> Carlos CA 94070 <br /> Q Analytical (650)232 9600 <br /> FAX(650)232-9612 <br /> www sequoialabs com <br /> ill <br /> er-Ryan/Geostrategies(l) Project Unocal(4) onSierra Court, Suite J Project Number Former Unocal#5098, Stocktin CA,9456$ Reported <br /> Project Manager Deanna Harding 07/01/02 07 46 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> nalyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> W-? 1.206021-08 Water Sampled 06/10/021531 Received 06/11/02 18 05 <br /> rene ND 20 ug/1 1 2060032 06/20/02 06/21/02 EPA 82608 <br /> 1,1,1,2-Tetrachloroethane ND 20 <br /> ,2,2-Tetrachloroethane ND 20 <br /> chloroethene ND 20 <br /> luene ND 20 <br /> 1,2,3-Trichlorobenzene ND 20 ^ „ <br /> „ <br /> ,4-Trichlorobenzene ND 20 <br /> ,1-Trichloroethane ND 20 <br /> 1,1,2-Tnchloroethane ND 20 <br /> chloroethene ND 20 „ <br /> ilchlorofluoromethanc ND 50 <br /> ^ „ <br /> ,3-Trichloropropane ND 20 <br /> t12 4-Trim ethyl benzene 24 20 „ ^ <br /> 5-Trimethylbenzene ND 20 <br /> I <br /> yl chloride ND 20 <br /> lbtal Xylenes 4 9 20 <br />�we1,2-Dichloroethane-d4 110% 76-114 <br /> le Toluene-d8 J02% 88-110 <br />}urrogate 4-BFB 974916 86-115 " <br /> -8D L206021-04 Water Sampled 06/101021725 Received 06/11/02 l8 05 <br /> zene 150 5 0 ug/l 25 2060034 06/24/02 06/24/02 EPA 8260E <br /> sromobenzene ND 5 0 <br /> On och lorom ethane ND 5 0 „ <br /> Snodichloromethane ND 50 ^ „ <br />�romoform ND 50 ++ „ <br />,romomethane ND 12 <br /> „ <br /> ylbenzene ND 5 0 <br /> tutylbenzene <br /> ND 5 0 ^ ^ <br /> ert-butyl benzene ND 5 0 <br /> on tetrachloride ND 5 0 <br /> robenzene ND 5 0 „ <br /> hloroethane ND 12 " <br /> „ <br /> roform ND 5 0 <br /> romethane ND 12 <br /> lorotoluene ND 5 0 ^ „ <br /> Chlorotoluene ND „ <br /> 5 0 <br /> mochioromethane ND 5 0 <br /> „ <br /> libromoethane ND 5 0 + „ <br /> bromomethane ND 5 0 <br /> Bola nalytical -San Carlos The revults in this report apply to the samples ani74=ed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> 1 <br /> Page 21 of 103 <br />