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819 Stnkcr Ave Su 8 <br /> Sequoia Sacramento,CA 95834 <br /> (916)921-9600 <br /> Analytical FAX(916) 0 <br /> www sequaialabs labs corn <br /> ettler-Ryan-Rancho Cordova Project Former Unocal 2859,Stockton,CA 5302536 <br /> 40 Gold Camp Dr,Ste 170 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Geoffrey D Risse 03/07/03 18 38 <br /> Gasoline (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Lunit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-2(S302536-01)Water Sampled 02/21/03 09.06 Received 02/21/0314 50 _ <br /> Purgeable Hydrocarbons 43000 25000 ug/l 500 3030038 03/04/03 03/04/03 EPA 8015/8021 <br /> Benzene 1400 250 " <br /> Toluene 8200 250 <br /> Ethylbenzene 2800 250 " <br /> Xylenes(total) 14000 250 " <br /> Methyl tert-butyl ether ND 100 50 03/04/03 " <br /> Surrogate a,a,a-Trifluorotoluene 97% 60-140 03104103 " <br /> MW-10(5302536-02)Water Sampled 02/21/03 09 16 Received 02/21/03 14 50 <br /> Purgeable Hydrocarbons 44000 10000 ugfl 200 3030038 03/04/03 03/04/03 EPA 8015/8021 <br /> Benzene 3100 100 " <br /> Toluene 10000 100 " <br /> Ethylbenzene 1400 100 " <br /> Xylenes(total) 13000 100 " <br /> Methyl tert-butyl ether ND 400 " <br /> Vogate aaa-Trifluorotoluene 86% 60-1401 (S302536-03)Water Sampled 02/21/03 08 56 Received_02/21/0314 50 <br /> Purgeable Hydrocarbons ND 50 ug/1 1 3030038 03/04/03 03/04/03 EPA 8015/8021 <br /> Benzene 090 050 " " <br /> Toluene 0 63 0 50 " 03/04/03 QR-04 <br /> Ethylbenzene 16 050 03/04/03 " <br /> Xylenes(total) 7 8 050 " " <br /> Methyl tert-butyl ether ND 2 0 03/04/03 " <br /> Surrogate a,a,a-Trifluorotoluene 99% 60-140 03104103 " <br /> uola 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 to its entirety <br /> Page 3 of 8 <br />