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885 larva atne <br /> Sequoia Morgan Hili,CA 95037 <br /> (408)776-9600 <br /> a— ) <br /> W Analytical FAX(408)7826308 <br /> www sequoralabscom <br /> i <br /> Secor-Rancho Cordova(ARCO) Project ARCO#4932,Stockton,CA MMJ0614 <br /> 3017 Kilgore Rd Suite 100 Project Number 38984 Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 11/04/03 16 52 <br /> Purgeable Hydrocarbons and BTEX by EPA 8015B18021B <br /> Sequoia Analytical -Petaluma <br /> Reporting <br /> Y� Result L snit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (MMJ0614-01)Water Sampled 10/17/03 11 21 Received 10/20/03 18 40 R-05 <br /> Gasoline Range Organics 1100 500 ugll 10 3100757 10/30/03 10/30/03 EPA <br /> 8015B/8021B <br /> Benzene: ND 5 0 <br /> Toluene ND 50 " <br /> Ethylbenzene ND 5 0 <br /> Xylenes(total) ND 5 0 <br /> Surrogate a,a a-Trifluorotoluene 99% 65-135 <br /> Surrogate 4-Bromofluorobenzene 97% 65-135 " <br /> MW-2(MMJ0614-02)Water Sampled 10117103 11 08 Received 10/20/03 18 40 <br /> Gasoline Range Organics 760 250 ugll 5 3100757 10/30/03 10/30/03 EPA <br /> Benzene ND 25 " " " ^ 8015D 8021B <br /> Toluene 20 25 <br /> Ethylbenzene 10 2 5 <br /> Xylenes(total) 51 2 5 <br /> Surrogate a,a,a-Trifluorotoluene 95% 65-135 <br /> Surrogate 4-Bromofluorobenzene 97% 65-135 <br /> MW4(MMJ0614-03)Water Sampled 10/17/03 11 40 Received 10/20/03 18 40 <br /> Gasoline Range Organics 21000 1000 USA 20 3100757 10/30/03 10/30/03 EPA <br /> Benzene 1500 10 " „ 8015B/6021B <br /> Toluene 2700 10 <br /> Ethylbenzene 810 IO " ^ <br /> Xylenes(total) 4100 10 <br /> Surrogate aa a-Trifluorotoluene 92% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 96% 65-135 " ^ <br /> Sequoia Analytical-Morgan Hi l] 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 /> 3 of 10 <br />