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July 9, 2014 Lab ID : STK1435937 <br /> Musco Family Olive Environmental Customer : 3-11544 <br /> Quality Control-Inorganic <br /> Definition <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> RgBlk :Method Reagent Blank-Prepared to correct for any reagent contributions to sample result. <br /> LCS :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <br /> MS Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> Dup :Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate.The relative percent difference is an <br /> indication of precision for the preparation and analysis. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 10 of 11 <br />