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819 Striker Ave Ste 8 <br /> Sequoia 5a¢ram(916) A 95834 <br /> -9600 <br /> '",►"��"' (916)921-9600 <br /> Analytical , 9uo;920com <br /> 100 <br /> Ryan-Dublin Project Former Unocal 2859,Stockton,CA S305466 <br /> 6W-Ryan <br /> Sierra Court,Ste J Project Number N/A Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 06/03/03 18 41 <br /> Gasoline(2-Methy)pentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reportmg <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-12 5305466-13 Water Sampled 05/19/0312.50 Received 05119/031710 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3050448 05/27/03 05/27/03 EPA 8015/8021 <br /> Benzene ND 050 „ <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate a,a,a-Trtfluorotoluene 103% 60-140 <br /> MW-13 S305466-14 Water Sampled 05/19/0310.55 Received 05/19/03 17 10 <br /> Purgeable Hydrocarbons ND 50 ug/l 1 3050448 05/27/03 05/27/03 EPA 8015/8021 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 <br /> Methyl tert-butyl ether ND 20 <br /> V.1ale a a a-Trtfluorotoluene 102 % 60-1404 5305466-15 Water Sampled 05/19/0311 40 Received 05/19/03 17 10 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3050448 05/27/03 05/27/03 EPA 8015/8021 <br /> Benzene ND 0 50 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 0 50 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 2 0 <br /> Surrogate a,a,a-Trifluorotoluene 96% 60-140 " <br /> Mom Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Unless otherwise stated results are reported on a wet weight basis <br /> This analytical report must be reproduced in its entirety <br /> Page 7 of 20 <br />