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September 8,2016 Lab ID : STK1650545 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Inorganic- <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> urate+Nitrite as N 450ONO3F MS mg/L 10.00 118% 5-285 <br /> (VI 1643519-003) MSD mg/L 10.00 120% 5-285 <br /> MSRPD m /L 10.00 0.9% <30.4 <br /> 4500NO3F 08/23116:212220JDD CCB mg/L 0.028 0.1 <br /> CCV mg/L 11.27 105% 90-110 <br /> CCB mg/L 0.051 0.1 <br /> CCV m /L 11.27 104% 90-110 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <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 /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> D O :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 7 of 7 <br />