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4 <br />Data Review Qualifier Definitions <br />Qualifier Explanation <br />* A quality control analyte recovery is outside of specified acceptance criteria <br />** Analyte is a surrogate compound <br />< Result is less than value reported <br />> Result is greater than value reported <br />RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL <br />A The TIC is a suspected aldol -condensation product <br />B Target analyte was detected in the associated blank <br />B Metals -Either presence of analyte detected in the associated blank, or <br />MDL/IDL < sample value < PQL <br />BD Results are either below the MDC or tracer recovery is low <br />C Analyte has been confirmed by GC/MS analysis <br />D Results are reported from a diluted aliquot of the sample <br />d 5 -day BOD -The 2:1 depletion requirement was not met for this sample <br />E Organics -Concentration of the target analyte exceeds the instrument calibration range <br />E Metals -%difference of sample and SD is >10t. Sample concentration must meet flagging criteria <br />H Analytical holding time was exceeded <br />h Preparation or preservation holding time was exceeded <br />J Value is estimated <br />N Metals -The Matrix spike sample recovery is not within specified control limits <br />N Organics -Presumptive evidence based on mass spectral library search to make a tentative <br />identification of the analyte (TIC). Quantitation is based on nearest internal standard <br />response factor <br />N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration <br />by 4X or more <br />ND Analyte concentration is not detected above the reporting limit <br />UI Gamma Spectroscopy -Uncertain identification <br />X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier <br />Y QC Samples were not spiked with this compound <br />Z Paint Filter Test -Particulates passed through the filter, however no free liquids were observed. <br />Page 7 of 36 <br />