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December 27, 2013 Lab ID : STK1352206 <br /> Live Oak Geo Environmental Customer : 3-16W8 <br /> Quality Control - Inorganic <br /> Constituent Method Date" Type Units Cone. QC Data DQO Note <br /> 'et Chem <br /> Nitrate ?00.0 17119/13:214546CHL Blame mg/L ND <0.4 <br /> LCS mg/L 20.00 99-9% 90.110 <br /> MS mg/L 400.0 102% 93-113 <br /> (STK1352204-001) MSD mg/L 400.0 104% 93-113 <br /> MSRPD mg/L 100.0 1.8% !�4 <br /> MS mgfL 400.0 102% 93-113 <br /> (STK1352204-M) MSD mg/f-. 400.0 103% 93-113 <br /> MSRPD m 100.0 1.1% 1 54 <br /> 300.0 12/20/13:218816CHL CCV ppm 20.00 1 102% 90-110 <br /> CCV m 20.00 103% 90-110 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instmrnent calibration is within criteria <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> LES :laboratory,Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <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/h4SD 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 :MSIMSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and anal)'sis. <br /> ND :Nan-detect-Result was below the DQO listed for the analyte. <br /> DQO :Data 2ualltv Ot ective-This is the criteria against which the quality control data is compared. <br /> Page 7 of 7 <br />