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a— ) <br /> 8!9 Sinker Aye Ste 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> W Analytical FAX(916)921-0100 <br /> www sequwalabs com <br /> f <br /> er-Ryan-Rancho Cordova Project Farmer Unocal 2859,Stockton,CA S303555 <br /> Gold Camp Dr,Ste 170 Project Number N/A Reported <br /> ho Cordova CA,95670 Project Manager Geoffrey D Risse 04/04/03 18 05 <br /> Gasolene (2-Methylpentane to 1,2,4-Trimethylbenzene) and BTEX by EPA 8015M and 8021B <br /> Sequoia Analytical - Sacramento <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-2 5303555-01 Water Sampled 03/21/03 09 24 Received 03/21/03 14 20 <br /> Purgeable Hydrocarbons 940 200 ug/1 4 3030405 03/26/03 03/26/03 EPA 8015/8021 <br /> Benzene 55 2 0 <br /> Toluene 10 2 0 <br /> Ethylbenzene 14 2 0 <br /> Xylenes(total) 77 2 0 <br /> Methyl tert-butyl ether 13 8 0 <br /> Surrogate aa a-Trfluorotoluene 84% 60-140 <br /> MW-10 S303555-02 Water Sampled 03/21/03 09 17 Received 03/21/03 14 20 <br /> Purgeable Hydrocarbons 19000 2500 ug/l 50 3030405 03/25/03 03/26/03 EPA 8015/8021 <br /> Benzene 210 25 <br /> Toluene 790 25 <br /> Ethylbenzene 83 25 » <br /> Xylenes(total) 7300 25 <br /> Methyl tert-butyl ether ND 1009 « <br /> agate a a,a-Trifluorotoluene 75% 60-140 <br /> -11 S303555-03 Water Sampled 03/21/03 09 06 Received 03/21/03 14 20 <br /> Purgeable Hydrocarbons 8800 1000 ug/1 20 3030405 03/25/03 03/26/03 EPA 8015/8021 <br /> Benzene 1600 10 <br /> Toluene 51 10 <br /> Ethylbenzene 540 10 <br /> Xylenes(total) 1500 10 <br /> Methyl tert-butyl ether ND 40 <br /> Surrogate a a,a-Trifluorotoluene 77% 60-140 " <br /> ata 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 3 of 8 <br />