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' Sequoia San an teal Road <br /> Carlos <br /> CA 94076 <br /> (650)232-9600 <br /> Analytical FAX(650)232-9612 <br /> www seGuoialabs corn' l <br /> er-Ryan/Geostra#egies(I) Protect Unocal(4) <br /> Sierra Court,Suite J Project Number Former Unocal#5098&Montgmery Ward Reported <br /> in CA,94568 Project Manager Deanna Harding 03/26/02 12 44 <br /> Volatile Organic Compounds by EPA Method 8260B <br /> Sequoia Analytical - San Carlos <br /> Reportmg <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> Ih W-27 L203015-36Water Sampled 03/05/02 08 58 Received 03/05/02 18 25 <br /> tyrene ND 20 ug/l 1 2030017 03/08/02 03/12/02 EPA 8260B <br /> 1,1,1,2-Tetrachloroethane ND 20 <br /> I1,2,2-Tetrachloroethane ND 20 " <br /> letrachloroethene 70 20 <br /> Toluene ND 20 " <br /> ,2,3-Trichlorobenzene ND 20 " <br /> 12,4-Triehlorobenzene ND 20 " <br /> ,l,I-Trichloroethane ND 20 <br /> 1,I,2-Trichloroethane ND 20 " « <br /> lrichloroethene ND 20 " ^ <br /> richlorofluoromethane ND 50 <br /> 1,2,3-Trichloropropane ND 20 " <br /> 2,4-Trimethylbenzene ND 20 <br /> " <br /> 13,5-Trimethylbenzene ND 2 0 " <br /> rayl chloride ND 20 " <br /> otal Xylenes ND 20 <br /> to 1,2-Dichloroethane-d4 105 % 63-118 <br />.iu gate Toluene-d8 967% 88-110 « <br /> Surrogate 4-BFB 101 % 86-115 " <br /> 1 <br /> 1 <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 repo+t must be reproduced in its entirety <br /> 1 <br /> Page 68 of 91 <br />