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November 6, 2015 Lab ID : STK 1551906 <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 /> Nitrate+Nitrite as N 4500NO,F MS mpJL 7'268 102% 5-285 <br /> (SP 1512011-00 1) MSD nig/L 7.268 103% 5-285 <br /> MSRPD niOL 7.268 1.5% <30.4 <br /> 450pNO3F 10/28/15:215831CII CCB mg/L -0.009 0.1 <br /> CCV mg/L 7.268 103% 90-110 <br /> CCB mg/L -0.007 0.1 <br /> CCV nig/L 7.268 105% 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/NISD pair-A random sample duplicate is spiked with a known amount of analyzed.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 /> DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 7 of 7 <br />