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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 1 404 N Wiget lane Walnut Geek CA 94598 (925)988-9600 FAX(925)98&9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)92t-9600 FAX(916)921-0100 <br /> �11� Analytical 1455 <br /> McDowell Sled North Ste D Petaluma CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 155 t Industrial Road San Carlos CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> tiler Ryan,Inc -Dublin Project Unocal <br /> 6'147 Sierra Court Suite J Project Number Former Unocal 4 0123 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 04-Oct-99 10 17 <br /> Volatile Organic Compounds by EPA Method 8010E <br /> Sequoia Analytical -Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> U-6 (W909217-07)Water Sampled 09-Sep-99 12 40 Received 10-Sep-99 14 55 <br /> Bromodichloromethane ND 050 ug./1 l 9115009 15-Sep-99 15-Sep-99 EPA 8010E <br /> Bromofonn ND 050 <br /> Bromomethane ND 10 " <br /> Carbon tetrachloride ND 050 " <br /> Chlorobenzene ND 050 " <br /> Chloroethane ND 10 <br /> Chloroform ND 050 " <br /> Chloromethane ND 10 " <br /> Dibromochloromethane ND 050 " <br /> 1,3-Dichlorobenzene ND 050 ' <br /> 1 4-Dichlorobenzene ND 0 50 " <br /> 1 2-Dichlorobenzene ND 050 " <br /> 1,1-DiLhloroethane 052 050 " <br /> 12-DiLhloroethane ND 0 50 " <br /> 4An1-Dithloroethene ND 0 50 " <br /> 1,2-Dithloroethent 26 0 50 <br /> a-l,2-Dithloroethent 053 0 50 <br /> 12-Dithloropropane ND 0 50 " <br /> tis-I 3-Dithloropropene ND 0 50 " <br /> tram-1 3-MLI loropropene ND 0 50 " <br /> Methylene Chloride ND 50 " <br /> 1 1,2 2-Tetrathloroethdne ND 050 " <br /> TttrdLhIoroethene 50 0 50 " <br /> I I I-Tnthloroethdne ND O 50 " <br /> 11.2-Tnthloroethane ND 0 50 " <br /> Trmhlorotthent 095 0 50 " <br /> TnLhlorofluoro methane ND 0 50 " <br /> Vinyl thlonde ND I () " <br /> Surrogate Dihroniodrfluotoniethane 800 % 50-150 <br /> Surrogate 4-Bronioflnorohenzene 660% 50-150 <br /> Sequoia Analytical - Walnut Creek The results in tie r report apply to the siaiiples analy--ed in accordaice with the chain of <br /> • custody document rltrr uiztlytical rep.)rt meet he reprmluced in its ennrety <br /> U e eg ey, 'root c t snag Page 1] of 16 <br /> CTx <br />