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R E C " Lo" I <br />GEL LABORATORIES LLC FEB 0 9 2017 <br />2040 Savage Road Charleston, SC 29407 - (843) 556-8171 - www.gel.com <br />ENVIRONMENTAL HEALTH <br />QC Summary DEPARTMENT <br />Workorder: 298512 Page 4 of 4 <br />Parmname <br />NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time <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, or LOD. <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 cone. by a factor of 4 or more. <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 39 of 39 <br />