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December 15, 2010 Lab ID : STK1050502 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control -Inorganic <br /> onsdtuent Method DateAD Type Units Con c QC Data DQO Note <br /> 1 <br /> et Chem <br /> Nitrate f Nitrite as N 450ONO3F MS mg/L 4.000 80.0% 5-285 <br /> (CH 1(Y77845-001) MSD mg/L 4.000 90.0% 5-285 <br /> MSRPD 4.000 11.7% <30.4 <br /> 450ONO3F 12/0212010:2I5402 CCE -0.Ol 0.1 <br /> CCV mg/L 4.000 104% 90-110 <br /> CCS mg/L -0.003 01 <br /> CCV m 4,000 109% 90-110 <br /> Dellnition <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 /> M5 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 pet-cent difference is as indication of precision for the preparation <br /> and analysis. <br /> 1,DQ0 :Data Quality Objective-This is the criteria a ainst which the guft control data is <br /> I <br /> 1 <br /> Page 9 of 9 <br />