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i <br /> s <br /> • <br /> Gettler-Ryan/Geostrategies(I) Protect Tosco(1) <br /> 6747 Sierra Court,Suite J Project Number Unocal Circle K SS#1205,Lathrop,CA Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 08/03/01 13 39 <br /> Total Purgeable Hydrocarbon (C6-Cl2) by EPA 8015M and BTEX/MTBE by EPA 8021B <br /> Sequoia Analytical - San Carlos <br /> ReMrtmg <br /> Analyte Result Lmut Units Dilution Batcb Prepared Analyzed Metbod Now- <br /> TB-LB (L107183-01)Water Sampled 07/19/01 00 00 Received 07/19/01 18 50 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/l 1 1080001 08/01/01 08/01/01 DHS LUFT <br /> Benzene ND 050 " <br /> Toluene ND 050 " ^ <br /> Ethylbenzene ND 050 " ^ <br /> Xylenes(total) ND 050 " <br /> Methyl ten-butyl ether ND 50 ' <br /> Surrogate a a a-Trifluoro toluene 868% 70-130 " <br /> MW-1 (L107183-02)Water Sampled 07/19/01 13 05 Received 07/19/01 18 50 <br /> Purgeable Hydrocarbons as Gasoline 55000 5000 ug/l 100 1080007 08/02/01 08/02/01 DHS LIJFr P-02 <br /> ^ <br /> Benzene 160 50 „ <br /> Toluene 1900 50 " <br /> Ethylbenzene 2700 50 " ^ <br /> &es(total) 15000 50 <br /> YJ <br /> tert-butyl ether ND 500 <br /> Surrogate a,a a-Tri luorotoluene 95 4% 70-130 " <br /> MW-2(L107183-03)Water Sampled 07/19/01 12 30 Received 07/19/01 18 50 <br /> Purgeable Hvdrocarbons as Gasoline 8400 1000 ugfl 20 1080007 08/02/01 08/02/01 DHS LUFT P-02 <br /> Benzene 30 10 " <br /> Toluene ND 10 , <br /> Etlivlbenzene 260 10 " <br /> Xylenes(total) <br /> 200 10 <br /> Methyl tert-butyl ether ND 100 " ^ <br /> Surrogate a a,a-Trifluorotoluene 102% 70-130 <br /> uoia Analytical- San Carlos The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 2 of 14 <br />