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f � <br /> t <br /> 404 N Wiget Lane <br /> Sequoia Walnut Creek CA 94598 <br /> IT) (925)988-9600 <br /> % Analytical FAX(925)989-9673 <br /> www sequoialabs can <br /> l <br /> Secor-Rancho Cordova Project Arco <br /> 3017 Kilgore Rd,Ste #100 Project Number Arco#2133,Stockton Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 14-Aug-02 13 16 <br /> Notes and Definitions <br /> A-01 The Blank Spike Recovery was above control limits for this analyte This should be considered when evaluating the data for its <br /> intended purpose <br /> C-01 To reduce matrix interference,the sample extract has undergone sulfuric acid clean-up,method 3665,which is specific to <br /> hydrocarbon contamination <br /> C-06 To reduce matrix interference,the sample extract has undergone TBA(sulfur)clean-up,method 3660E <br /> HC-12 Hydrocarbon pattern is present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel <br /> Q-19 The method blank contains this analyte at a concentration above the method reporting limit This should be considered in <br /> evaluating the data for its intended purpose <br /> QM-07 The spike recovery was outside control limits for the MS and/or MSD The batch was accepted based on acceptable LCS <br /> recovery <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 /> .Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 20 of 20 <br />