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�. April 10, 2013 Lab M : STK1332780 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control-Inorganic <br /> Constituent Method Dute/ID Type units Ce QC Data DQO Noce <br /> Wet Chem <br /> itruc+Nitrite as N 4500NO3F MS mg/L 4.000 94.8% 5-285 <br /> (STR1332755-0O1) MSD n>WL 4.000 105% 5-285 <br /> MSRPD 4.000 8.9% 510.4 <br /> 4500NO3F 04A)V13204617AMB CCB mg/L -0.001 0.1 <br /> CCV mp/L. 4.000 91.0% 90110 <br /> CCB mg/L -0.024 0.1 <br /> CCV m 4.000 942% 90-110 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Continuing Calibration Blank-Analyzed m 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 /> DQO Data Quality Objective-'This is the criteria against which the quality control data is <br /> `r <br /> Page 7 of 7 <br />