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1551 induanat Road <br /> !D S e q u o ii a San Catton CA 94070 <br /> A14Wnalytical- - -- -- _ - _ - - - - -__ - _-_ - - - - _ 1650)232-9612 <br /> 0)2329600 <br /> t <br /> FAR f G_ = <br /> www sequoialabq nom <br /> Genler-Ryan/Geosrrategtes(1) Project Tosco(l) <br /> 6747 Sterna Court Suite J Prosect Number Tosco#5886 Stockton Reported <br /> Dublin CA 94568 Project Manager Deanna Harding 05/20/02 12 25 <br />�=TotaiTurgeable-Hvdrocarbon {C--6-012} b,%7-EPA=8015NI-and=BTEX/n4TBE bv4EPA-8021 B = <br /> Sequoia Analytical - San Carlos <br /> Reporting <br /> Analyte - _- Recult Urnit- Unitc Dilution Batch Prepared Analvzed Method Notec <br /> Mw-6(L205012-10)Water Sampled 05/03/01 11 30 Reeetred 05/03/02 16 50 <br /> Forgeable Hydrocarbons as Gasoliii =- -—ND-- -- -50 -ugl] -- 'l T-- 2050032-LL05/15/02- --OS/15/02---EPA 80218 T y <br /> Benzene ND 050 <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl Cert-burvl ether ND 50 <br /> Surrogate a a a Trifluorotoluene 108, 70-130 " <br /> M�i1'-7D(L205012-11)Water Sampled 05/03/02 09 10 Received 05/03/02 16 50 _ <br /> Purgeable Hvdrocarbons as Gasoline ND 50 �ugll 1 2050032 V/15/02 05/15102 EPA 8021B - <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 /> I <br /> Surrogate a a a-Trifluorotoluene 107% 70-130 <br /> MW-7S(L205011-12)Water Sampled 05/03/02 08 35 Rem%ed-05103102 16 50 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ugn 1 2050012 05/]5/02 05/15/02 EPA 802113 <br /> Benzene ND 050 <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 <br /> Methyl ten-butyl ether ND 50 <br /> Surrogate a a a-D ifluorotoluene 123 % 70-130 " <br /> Sequoia Analytical - San Carlos The results in this i eport apply to the samples onaltaed in accordance with the chain <br /> custody document This analytical report must be reproduced in its entmeo, <br /> Page 5 of 23 <br />