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Sequoia 404 N,WiLane <br /> Walnut Creek CAA 9454$ <br /> (925)988-%W <br /> q%krAnalytical FAX equ 3 <br /> 9$8-96' <br /> FAX <br /> sequolalabs com <br /> Gettler Rvan Inc - Dublin Project Tosco <br /> 6747 Sierra Court Suite J Project Number Tosco# I 1 192 Reported <br /> Dublin CA,94568 Protect Manager Doug Lee 19-Oct-01 10 48 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Anal;to Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1J 16010- EPA 5030B (P/T) <br /> LCS(IJ16010-BS2) Prepared&Analyzed 17-Oct-01 <br /> Mr_thN I tert-burvl ether(MTBE) 389 20 ug l -5-6-6-- _ 4 77 8 -W 70-130 <br /> fur r ovure Dibronro/luoromeihune 488 500 97-6 50-150 <br /> Suri orate 1 2-Dichloroethane-0`4 422 Soo 844 50-150 <br /> Matrix Spike(1,116010-MSI) Source W110096-02 Prepared & Analyzed 16-Oct-Ot <br /> Methyl ten KIM ether(MTBE) 51 9 20 ug/I 500 ND 104 60-150 <br /> Sw r oguie Dihromo/luoromethane 502 500 ]on 50-150 <br /> %atimewe 1 ' Drclrloruethane d4 350 500 700 50-150 <br /> Matrix Spike Dup(1.116010-MSDI) Source W110096-02 Prepared 16-Oct-01 Analyzed 17-Oct-01 <br /> Methyl Cert-butyl ether(MTBE) 590 2 07 ug/l 50-0 ND t 60-150 _ 128 — -- - <br /> Surrogate Dibromofluoromethane T 521 SO 0 �^ 104 50-150 <br /> Surrogate 12-Dichloroethone-d4 353 500 706 50-150 <br /> Sequoia Analytical - Walnut Creek The results in this report apply to the samples analyzed in accordance with the ch <br /> custody document This analytical report must be reproduced in as en0 <br /> Page 8 of 10 <br />