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August 23,2011 Lab ID STK1137230 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control-Inorganic <br /> nstitucm Method Date/]]) 'I\fix I:.,its Cunt. QC Data 1)Q0 N'.1'. <br /> N%0 Chem <br /> umhc 300.0 08/17/11:209085CHL LCS mg/L 20.00 98.9°-u 90-I it) <br /> MS Toga- 400.0 101% 88-124 <br /> (STK1137230-001) MSD mg/L 400.0 101% 88-I24 <br /> MSRPD m 100.0 0.3% 49.1 <br /> 300.0 08/17/11:212047CBL lCV ppm 40.00 99.5% 90-110 <br /> lCB ppm 0.091 0.4 <br /> CCB ppm 0.079 (1.4 <br /> CCV .m 'a,ua 99.4°R 90-Ito <br /> Definition <br /> lC V :Initial Calibration Venfication-Analyzed to verify the instrument calibration a within criteria. <br /> Ku :Initial Calibration Blank-.Analyzed 0 verify the instrument hascline is within rntena. <br /> CCV :Continuing Calibration Verification-.Analyzed to verify the instrument calibration is within criteria. <br /> CCB :Contiuning Calibration Blank-Analyzed to verify the instrument baseline m within criteria. <br /> LCS :Laboratory Control Swridard(Sample-Prepared to verify that the preparation process a net affecting analyte recovery. <br /> MS :Matrix Spikes-A random sample is spiked with a known=rut of analyte.The recoveries are an indication of how that sampk <br /> matrix affmt analyte recovery. <br /> MSD 'Maw Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amamt of aoalyted.The recoveries <br /> are an indication ofhow that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision fix the prepnratiai <br /> and analysis. <br /> )QO :Data Quality Objective-This is the criteria against which the quality control data is caro ed <br /> Page 6 of 6 <br />