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SUnStar 25712 Commercentre Drive <br /> Laboratories, Inc. Lake Forest,California 92630 <br /> t PROVIDING QU.WTY ANAIXTICRL$ERvlces NATIONWIDE 949.297.5020 Phone <br /> 949.297.5027 Fax <br /> PSI--Oakland Project: Farmington-Tank Pull <br /> ' 4703 Tidewater Ave Ste B Project Number: 575-352-1 Reported: <br /> Oakland CA,94601 Project Manager: Frank Poss 11/04/11 16:55 <br /> ' Notes and Definitions <br /> S-GC Surrogate recovery outside of established control limits.The data was accepted based on valid recovery of the remaining surrogate(s). <br /> t S-03 The surrogate recovery was below acceptance criteria in the sample because of a possible matrix effect. The surrogate recovery was <br /> within acceptance criteria in the method blank and LCS. <br /> QR-02 The RPD result exceeded the QC control limits;however,both percent recoveries were acceptable.Sample results for the QC batch <br /> ' were accepted based on percent recoveries and completeness of QC data. <br /> QM-07 The spike recovery and or RPD was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable <br /> LCS recovery. <br /> t QM-05 The spike recovery was outside acceptance limits for the MS and/or MSD due to possible matrix interference.The LCS was within <br /> acceptance criteria. The data is acceptable as no negative impact on data is expected. <br /> QM-01 The%recovery is outside of established control limits due to matrix interference and/or sample dilution due to matrix effect. The batch <br /> was accepted based on acceptable LCS recovery. <br /> QB-01 The method blank contains analyte at a concentration above the MRL;however,concentration is less than 10%of the sample result, <br /> which is negligible according to method criteria. <br /> ' D-09 Results in the diesel organics range are primarily due to overlap from a heavy oil range product. <br /> D-02 Hydrocarbon pattern present in the requested fuel quantitation range but does not resemble the pattern of the requested fuel. <br /> ' CC Concentration for this analyte in the calibration check exceeded the method QC limits. Associated samples and blank were ND for this <br /> analyte so data was not effected. <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 /> tSunStar Laboratories,Inc. 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 /> ' Wendy Hsiao,Project Manager Page 36 of 36 <br />