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Sequoia 404 N wiLane <br /> Walnut Creek CAA 94598 <br /> 4 (925)988-96M <br /> ;ett7ler <br /> Analytical FAX equ alabs c 73www sequol988- 673 Ryan, Inc -Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# 11194 Reported <br /> Dublin CA,94568 Project Manager Doug Lee 05-Nov-01 16 07 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Nates <br /> Batch 1J31003-EPA 5030B P/T <br /> Matrix Spike Dup(1J31003-MSD1) Source W110509-04 Prepared 31-Oct-01 Analyzed 05-Nov-01 <br /> Benzene 25 5 050 ug/1 200 ND 128 70-130 12 5 20 <br /> Toluene 199 050 200 ND 995 70-130 123 20 <br /> Ethylbenzene 194 050 200 ND 970 70-130 21 2 20 QR-07 <br /> Xylenes(total) 664 0 50 600 ND 111 70-130 641 20 <br /> Surrogate a a a-Trifluorwoluene 303 300 101 70-130 <br /> Sequoia Analytical - Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 6 of 7 <br />