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November 2,2010 Lab ID : STK 1039388 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control -Organic <br /> nstityent Method DateAD Type Units Cane. QC Data DQO Note <br /> rganic ' <br /> 1,3-Dibromopropaoe 504 10/2212410;211064 Blank uglL 0.5868 86.1% 70-130 <br /> LCS ug/L 0:5868 86.6% 70-130 <br /> MS uglL 0.5868 78.2% 70-130 <br /> (STK1039359-002) MSD u9/L 05868 90.7% 70-130 <br /> MSRPD UWL 0.5868 3.2% S30 <br /> BCP 504 1012212010:211064 Blank ugfL ND <0.01. <br /> LCS ug/L 0.2450 112% 70-130 <br /> Ms ug1L 0.2950 98.9% 70-130 <br /> (STKi039359-002) MSD ug1L 0.2950 104% 70-130 <br /> MSRPD u 1L 0.5868 4.9% S30 <br /> 13DBp 504.1 1072212010 233474 CCV ug1L 7.481 r %.2% 70-130 <br /> CCV u IL 9.975 82.2% 70-130 <br /> BCP 504.1 1012212010:213474 CCV uglL 2.006 89.7% 70-130 <br /> l'CV u 5.015 106°b 70-130 <br /> Definition <br /> CCV Continuing Calibration Verification-Analyzed to v erify the inatmment calibration is within criteria <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> LCS :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 bow that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MSIMSD pair-A random sample duplicate is spiked with a known amount of analyted TIM recoveries <br /> are an tndicabou 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 analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> D ;Data Quality Obiective-This is the criteria against which the quality control data is com <br /> t <br /> Page 6of6 <br /> I <br />