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Sequoia I551 nal Road <br /> 4Z) <br /> San Carlos <br /> CA 94070 <br /> Analytical (650)232.9610 <br /> FAX(650)232-9612 <br /> www sequoialabs com <br /> Gettler-Ryan/Geostrategies(1) Project Unocal(4) <br /> 6747 Sierra Court,Suite J Project Number Former Unocal#2859,Stockton ZReport:edDublin CA,94568 Project Manager Deanna Harding 0347 <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015M and BTEX/MTBE by EPA 8021B <br /> Sequoia Analytical - San Carlos <br /> Reportmg <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-12 (L202097-16)Water _Sampled 02/16/0212 15 Received 02/17/02 11.00 _ <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/l I 2020071 02/21/02 02121102` EPA 8021B ^_ <br /> Benzene ND 050 " " " , „ <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) 1 9 050 " <br /> Methyl tert-butyl ether ND 50 „ <br /> Surrogate a,a,a-Tri luorotoluene 771 % 70-130 <br /> MW-13(L202097-17)Water Sampled 02/16/02 09 05 Received: 02/17/02 11 00 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/l 1 2020071 02/21/02 02/21/02 EPA 8021B <br /> Benzene ND 050 <br /> Toluene ND 0 50 <br /> Ethylbenzene - ND 0 50 <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 5 0 " <br /> Surrogate a,a,a-TriJluorotoluene 755% 70-130 <br /> MW-14(L202097-18)Water Sampled 02/161020953 Received 02/17/02 11 00 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/l 1 2020071 02/21/02 02/21/02 EPA 8021B <br /> Benzene ND 0 50 " ++ - „ <br /> Toluene ND 050 " <br />�Ethylbenzene ND 0-50 ,, <br /> Xylenes(total) ND 0 50 <br /> Methyl tent-butyl ether-- ---ND— 5 0 ---- <br /> Surrogate a,a,a-Trifluorotoluene__�— --88 8 --70-130– _- <br /> Sequoia Analytical - San Carlos The results in this report apply to the samples analyzed in accordance with the chain oJW <br /> custody document This analytical report must he reproduced in its enterety <br /> Page 7 of 18 <br />