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404 H Wiget Lane <br /> Sequoia Walnut Creek C94598 <br /> (925)988 8-9600 <br /> FAX(925)988-%73 <br /> i <br /> Analytical www sequoialabs com <br /> ettler Ryan, Inc - Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-8264 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 06-Aug-01 09 54 <br /> Volatile Organic Compounds by EPA Method 8010B <br /> Sequoia Analytical - Walnut Creek <br /> Reporting <br /> Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br /> MW-1 (W 107327-02)Water Sampled 18-Jul-01 16 44 Received 19-Jul-01 10 00 <br /> Chloromethane ND 20 ug/l 1 1G25008 26-Jul-01 27-Jul-01 EPA 801013 <br /> Vinyl chloride ND 1 0 " <br /> Bramomethane ND 1 2 " <br /> Chloroethane ND 1 0 " <br /> Trichlorofluoromethane ND 060 " <br /> Freon 113 ND 1 0 " <br /> 1,1-Dichloroethene ND 1 0 " <br /> Methylene chloride ND 10 " <br /> trans-l,2-Dichloroethene ND 10 " <br /> 1,1-Dichloroethane ND 10 " <br /> cis-1,2-Dichloroethene ND 10 " <br /> Chloroform ND 10 " <br /> 1,1,1-Trichloroethane ND 10 " <br /> Carbon tetrachloride ND 1 0 " <br /> 0 ichloroethane ND 1 6 " <br /> loroethene ND 1 I <br /> 1,2-Dichloropropane ND 1 0 " <br /> Bromodichloromethane ND 1 0 <br /> cis-1,3-Dichloropropene ND 10 " <br /> trans-l,3-Dichloropropene ND 060 " <br /> 1,1,2-Trichloroethane ND 050 " <br /> Tetrachloroethene ND 060 " <br /> Dibromochloromethane ND 050 " <br /> 1,2-Dibromoethane ND 10 " <br /> Chlorobenzene ND 10 <br /> Bromoform ND 050 " <br /> 1,2,3-Trichloropropane ND 050 " <br /> 1,I,2,2-Tetrachloroethane ND 060 " <br /> 1,3-Dichlorobenzene ND 050 " <br /> 1,4-Dichlorobenzene ND 12 " <br /> 1,2-Dichlorobenzene ND 12 " <br /> Surrogate Dibromodifluoromethane 977% 50-150 <br /> Surrogate 4-Bromofluorobenzene 898% 50-150 " <br /> Sequoia Analytical - Walnut Creek The results in this report apply to the samples analyzed to accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 7 of 24 <br />