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Sequoia w.Vh ` 2 MLSaS"Z <br />(925) 988-9600 r, <br />FAX (925) 988-9673 <br />Analytical %%%%,w seqwWlidn c, <br />Gettler Ryan, Inc - Dublin Project. Unocal <br />6747 Siam Court Suite J Project Number Unocal # 0123 Reported <br />Dublin CA, 94568 Project Manager Deanna L Harding 29 -Dec -00 07 40 <br />Total Purgeable Hydrocarbons (C6 -C12), BTEX and MTBE by DHS LUFT <br />Sequoia Analytical - Sacramento <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />I DIL-D (WU12167-U1) Water Sampled 06 -Dec -00 00 00 Received 06 -Dec -0018 30 <br />Purgeable Hydrocarbons ND 500 ug4 1 0120200 17-Deo-oo 17 -Deo -00 DHS LUFT <br />Benzene ND 0 500 « w « « « « <br />Toluene ND 0 500 <br />Ethylbenzene ND 0 500 " « • „ • w <br />xylenes (total) ND 0 500 ^ R R w w w <br />Methyl tert-butyl ether ND 250 <br />Surrogate a a,a-Tnf1'uorotoluene <br />738% 60-140 ^ ^ <br />U-2 (W012167-02) Water Sampled 06 -Dec -00 00 00 Received 06 -Dec -0018-30 <br />Purgeable Hydrocarbons <br />ND <br />Soo <br />ugA <br />1 <br />0120200 <br />17 -Doo -00 <br />17 -Deo -00 <br />DHS LUFf <br />Benzene <br />0 500 <br />Toluene <br />SND <br />ND <br />0 500 <br />w <br />R <br />R <br />w <br />w <br />« <br />Ethylbenzene <br />ND <br />0.500 <br />w <br />« <br />« <br />w <br />w <br />R <br />xylenes (total) <br />ND <br />0 500 <br />Methyl tert-butyl ether <br />ND <br />250 <br />^ <br />R <br />« <br />w <br />n <br />w <br />Surrogate a,a,a-Tnffuorotoluene <br />993% <br />60-140 <br />^ <br />^ <br />U-3 (WO12167-03) Water Sampled 06 -Dec -000000 <br />Received 06 -Dec -0018 <br />30 <br />Purgeable Hydrocarbons <br />ND <br />500 <br />ug/l <br />1 <br />0120200 <br />17 -Deo -00 <br />18 -Dao -00 <br />DHS I.UF1' <br />Benzene <br />ND <br />0 500 <br />" <br />R <br />R <br />n <br />w <br />Toluene — <br />ND <br />0500-0 <br />.Ethylbenzene <br />ND- <br />0500— <br />xylenes (total) <br />ND <br />0 500 <br />« <br />w <br />w <br />« <br />- N -Methyl tent -butyl ether- =-- - - - Y <br />- - = ND = <br />--2 50 <br />Surrogate a,a,a-Tnfluorotoluene <br />997% 60-140 <br />Sequoia Analytical -Walnut CredC The r+esuhr rn this report apply to rhe sampler onfyred in a wordCmee wh* d e cmnqchurn e <br />custody do� This ana5Wcal r q om rn W be reprodrred In lu arlrb * <br />Page 6 of 17 <br />