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885 Tarns Drive <br /> � Sequoia Morgan Hill,,CA 950375037 <br /> (448)776 9600 <br /> Analytical FAX(408)792-6308 <br /> www sequoialabs com <br />' <br /> TIC Engineering Inc-Pleasant Hill(Exxon) Project Exxon 7-3942 MOJ0913 <br /> 2285 Morello Avenue Project Number Exxon 7-3942 Reported <br /> Pleasant Hill CA,94523 Project Manager Ted Moise 11/09/05 15 08 <br />' Notes and Definitions <br /> QM01 The spike recovery was above control limits for the MS and/or MSD The batch was accepted based on acceptable LCS recovery <br />' A-01 a There was insufficient time between sampling and sample receipt to perform the analysis within EPA designated hold time <br /> A-01b This result is biased high due to coelution with a hydrocarbon <br /> CFI Pnmary and confirmation results varied by greater than 40%RPD <br /> HT-04 This sample was analyzed beyond the EPA recommended holding time <br /> IQB02 The method blank contains this analyte at a concentration above the method reporting limit <br /> QC01 The percent recovery was above the control limits <br /> A-01 The result was reported with a possible high bias due to the continuing calibration blank falling outside acceptance cntena <br /> QC21 The RPD result exceeded the control limits,however,both percent recovenes were acceptable Sample results for the QC batch <br />' were accepted based on percent recoveries and completeness of QC data <br /> SO4 The surrogate recovery for this sample is above control limits due to interference from the sample matrix <br /> 14002 The spike recovery was below control limits for the MS and/or MSD The batch was accepted based on acceptable LCS recovery <br /> ,404 The spike recovery was above control limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike <br /> concentration The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits <br /> QM05 The spike recovery was below control limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike <br /> concentration The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits <br /> QM07 The spike recovery was below control limits for the MS and/or MSD due to matrix interference Re-extraction/re-analysis <br /> performed to confirm original MS/MSD results <br /> QM08 The spike recovery was above control limits for the MS and/or MSD due to matnx interference Re-extraction/re-analysis <br /> performed to confirm original MS/MSD results <br /> IR-05 The sample was diluted due to the presence of high levels of non-target analytes resulting in elevated reporting limits <br /> QCO2 The percent recovery was below the control limits <br /> IDET 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 /> I <br /> �oia Analytical-Morgan HiII The results in this report apply to the samples analyzed in accordance with the chain of <br /> I custody document Unless otherwise stated results are reported on a wet weigh!basis This <br /> analytical report must be reproduced to its entirety <br /> IPage 80 of 80 <br />