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August 31,2011 Lab ID STK 1137527 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Inorganic <br /> Constituent Nl,-tb.d WWII) "yr- Units Cone. QCDara DQO Vnle <br /> Wd Chem <br /> :'mate aNii) 08125/11 209426CFR, LCS mg/L 20.00 101% N)-I 10 <br /> MS mg/L 400.0 100% 88-124 <br /> (STK1137513-001) MSD mgJL 400.0 101% 88-124 <br /> MSRPD -9/1- 100.0 0.1% _29.1 <br /> lWo 0825111:212633CHh CCB ppm 0.043 0.4 <br /> CCV ppm 20.00 101% 90-110 <br /> CCB F'� D.116 0.4 <br /> CC6' 20.00 102 9e 90-110 <br /> Definition <br /> (,CV :Contim eng Calibration Verification-Analyzed to verify the instrvmial calihtntion is within criteria. <br /> CCA :Continuing Cahbeanon Blank-Analyzed to verify the instrument baseline is wi l in criteria. <br /> LCS :Laboratory Control Standard/Saesple-Prepared to verify that the preparation process is not atfecling analyte recovery. <br /> Nis :Matrix Spikes-A random sample is spiked w ah a known amount of analyte.The recoveries are an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Dopla me of MS/MSD pair-.4 random sample duplicate is spiked with a known smount ofanalyled-'the rani vnc, <br /> are an indication ofhow that sample matrix affects analyte recovery. <br /> n1SRPD :MS/MSD Relative Percent Difference(RPD)-'the MS relative percent diflerrnce is an imiiration of precision for the proper n oo <br /> and analysts. <br /> D Q :Dem Gualfty Objective-This is the criteria against which the quality control data is cora <br /> Page 7 of 7 <br />