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October 2, 2014 Lab ID : STK1439350 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data �DQONte <br /> et Chem <br /> itrate+Nitrite as N 450ONO3F MS mg/L 11.27 95.7% 5-285 <br /> (CC 1483148-003) MSD mg/L 11.27 95.3% 5-285 <br /> MSRPD m 11.27 0.2% <30.4 <br /> 450ONO3F 09/11/14:213867CJJ CCB mg/L 0.075 0.1 <br /> CCV mg/L 11.27 94.8% 90-110 <br /> CCB mg/L 0.072 0.1 <br /> CCV m� <br /> 96.3% 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 ali Objective-This is the criteria against which the qualitycontrol data is compared. <br /> Page 7 of 7 <br />