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QSequoia <br />� Analytical <br />404 N Wiget lane <br />Walnut Creek CA 94598 <br />(925)988-9600 <br />FAX (925) 988-9673 <br />www sequoialabs com <br />er Rvan lnc_ -Dublin Project Chevron <br />6747 Sierra Court Suite d Project Number Chevron # 9-5775 Reported <br />Dublin CA 94568 Project Manager Scott Polston 09 -May -00 11 21 <br />Notes and Definitions <br />0-04 This sample was analyzed outside the EPA recommended holding time <br />P-01 Chromatogram Pattern Gasoline C6 -C 12 <br />P-02 Chromatogram Pattern Gasoline C6 -C12 + Unidentified HNdrocarbons <C6 <br />P-03 Chromatogram Pattern Unidentified Hydrocarbons C6 -C 12 <br />Q-07 The RPD value for this QC sample is above the established control limit Review of associated QC indicates the high RPD does <br />not represent an out -of -control condition for the batch <br />S-04 The surrogate recovery for this sample is outside of established control limits due to a sample matrix effect <br />DET Analyte DETECTED <br />ND Analyte NOT DETECTED at or above the reporting limit <br />NR Not Reported <br />dry Sample results reported on a dry weight basis <br />RPD Relative Percent Difference <br />C] <br />Sequoia Analytical - Walnut Creek The results in this report apply to the samples ana4Ted in accordance with the chain of <br />0 custody document This analytical report must be reproduced in its enttrery <br />Page 11 of 11 <br />F• <br />