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GEL LABORATORIES LLC ��L- <br />2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com FEB ®g 2017 <br />QC Summary ENVIRONMENTAL_ HEAOT <br />Workorder: 410337DEPARTM'E Page 34 of 34 <br />Parmname NOM Sample Qual —QC Units RPD% REC% Range Anlst Date Time <br />P Organics --The concentrations between the primary and confirmation columns/detectors is >40% different. For HPLC, the difference is >70%. <br />Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER. <br />R Sample results are rejected <br />U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD. <br />UJ Compound cannot be extracted <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 />^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry. <br />h Preparation or preservation holding time was exceeded <br />N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike cont. by a factor of 4 or more or %RPD not applicable. <br />^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than <br />five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the <br />RL is used to evaluate the DUP result. <br />* Indicates that a Quality Control parameter was not within specifications. <br />For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. <br />Where the analytical method has been performed under NELAP certification, the analysis has met all of the <br />requirements of the NELAC standard unless qualified on the QC Summary. <br />Page 56 of 56 <br />