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(i) Straker Ave Ste B <br /> Sequoia Sacramento CA 95834 <br /> (916)921 9600 <br /> r Analytical FAX(9l6)9210100 <br /> www sequaialabs com <br /> SECOR International-Rancho Cordova Project Tosco 5447,Stockton,CA 5307351 <br /> 3017 Kilgore Road,Suite 100 Project Number N/A Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 07/23/03 14 09 <br /> Total Petroleum Hydrocarbons as Gasohne and BTEX by EPA 8015B/8O21B <br /> Sequoia Analytical-Petaluma <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> SP-1 (A-D)(Composite)(5307351-01)Soil Sampled 07/16/03 11 00 Received 07/16/03 14 02 <br /> Gasoline Range Organics ND 1000 ug/kg 1 3070447 07/22/03 07/22/03 EPA <br /> 8015B/8021B <br /> Benzene ND 5 0 " <br /> Toluene ND 5 0 " <br /> Ethylbenzene ND 5 0 " <br /> Xylenes(total) ND 5 0 " <br /> Methyl tert-butyl ether ND 5 0 " <br /> Surrogate a a,a-Trii luoroto/uene 107% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 103% 65-135 " <br /> SP-2(A-D)(Composite)(5307351-02)Soil Sampled 07/16/03 11 24 Received 07/16/03 14 02 <br /> Gasoline Range Organics ND 1000 ug/kg 1 3070447 07/22/03 07/22/03 EPA <br /> 8015B/8021B <br /> W <br /> enzene ND 5 0 <br /> oluene ND 5 0 <br /> Ethylbenzene ND 5 0 " <br /> Xylenes(total) ND 5 0 " <br /> Methyl tert-butyl ether ND 5 0 " <br /> Surrogate a a a-Trifluorotoluene 107% 65-135 " <br /> Surrogate 4-Bromofluorobenzene 102% 65-135 " <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> 0 of custody document Unless otherwise stated results are reported on a wet weight <br /> basis This analytical report must be reproduced in its entirety <br /> I <br /> Page 3 of 10 <br />