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•1 w � <br /> ' 404 Nl WlSet Lane <br /> Sequoia <br /> Walnut meek CA 94598 <br /> (925)"8-9600 <br /> FAX(925)988-9673 <br /> Analytical www sequo1alabs com <br /> LVerRyan,Inc -Dublin Project Chevron <br /> 6747 Sterna Court Suite J Project Number Chevron#9-9840 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 10-Jul-00 17 52 <br /> Industrial Solvents by EPA Method 8015 (modified) - Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Lutut Units Level Result %REC Linuts RPD Linut Notes <br /> Batch 0GO5008-EPA 3810 Headspace <br /> LCS(OG05008-BS2) Prepared&Analyzed 05-Jul-00 <br /> Methanol 682 100 mg/1 800 853 70-130 <br /> Surrogate I-pentanol 484 500 968 55-157 <br /> Surrogate 1-pentanol(dbwar) 466 500 932 57-170 <br /> i <br /> Matra Spike(OG05008-MSI) Source MJF'0939-02 Prepared 03-Jul-00 Analyzed 04-Jul-00 <br /> Methanol 712 100 mg/1 800 ND 890 50-150 <br /> Surrogate 1 pentanol 504 500 101 55-I S7 <br /> Surrogate 1-pentanol(dbwar) 492 Soo 984 57-170 <br /> Matrix Spike Dup(OG05008-MSDI) Source MJF'0939-02 Prepared 03-Jul-00 Analyzed 04-Jul-00 <br /> Methanol 738 100 mg/1 800 ND 923 50-150 359 50 <br /> Surrogate 1 pentanol 537 Soo 107 55-157 <br /> Sine I-pentanol(dbwar) 780 500 156 57-170 <br /> S ' oia Analytical-Walnut Creels The results in this report apply to the samples anal aed to accordance with the chain of <br /> custody document This analytical report must be reproduced in us entirety <br /> Page 10 of 11 <br />