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November 17,2020 Lab ID : STK2055328 <br /> Musco Family Olive Environmental Customer : 3-11544 <br /> Quality Control-Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> )runic <br /> tOC 5310C 11/01/20:212856AMM Blank mg/L ND <0.3 <br /> MS mg/L 25.00 98.5% 75-125 <br /> (STK2055192-008) MSD mg/L 25.00 95.6% 75-125 <br /> MSRPD m 25.00 2.9% :523.0 <br /> 5310C 11/02/20:217602AMM CCV ppm 15.00 92.1% 74-131 <br /> CCV Rpm 1 15.00 1 96.1% 1 74-131 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <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 analyte.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <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 11 of I 1 <br />