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404 N Wiget Lane <br /> 7• Walnut Creek CA 94598 <br /> Sequoia (975)988-9600 <br /> FAX(975)988-9673 <br /> Analytical www sequoialabs tom <br /> 111LI R<<+n Int - Dublin Project Tosco <br /> h7-17 tiiow C ouit Suitt I Protect Number Tosco N 1 1 192 Reported <br /> 1)uhlin C A 94568 Protea Manager Doug Lee 19-Oct-OI 10 48 <br /> industrial Solvents by EPA Method 8015 (modified) - Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> 1nil�t� RtSuli Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1J10006- EPA 3810 Headspace <br /> Blank (IJ10006-BLK1) Prepared&Analyzed 10-Oct-Ol <br /> Methanol ND T 500 ug/1 <br /> buirogaie 1-penianol _ 5450 5000 I09 55-157 <br /> LCS(1 J 10006-BS I) Prepared&Analyzed 10-Oct-01 <br /> Methanol _ 7690 f 500 ugll 8000 961 50-150 <br /> Surrogate 1-pentanol --- f �— --- 5260 v- — --- 5000 105 55-157 <br /> Matrix Spike(1J10006-MSI) Source MKJ0181-03 Prepared&Analyzed 10-Oct-Ol <br /> Methanol 7520 500 ugl! 8000 ND 940 50-150 -- <br /> Surrogate 1-pentanol 5070 5000 - - 101 55-157 <br /> Matrix Spike Dup(lil0006-MSDI) Source MKJOISI-03 Prepared&Analyzed 10-Oct-01 _ _ <br /> 7910 500 ugll 8000 ND 9j-9- 50450 -506 <br /> ULutc 1 puttrnuil 5040 5000 101 55-157 <br /> �oia A Italy tical - Walnut Creek The results in this report apply ro the samples analyzed in accordance with the chain of <br /> custom dot.iunent This analytical report must be reproduced in its entirety <br /> Page 9 of 10 <br />