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Tune 14,2010 Lab ID : STK1034940 <br /> Live Oak Geo Environmental Customer 3-15648 <br /> Quality Control-Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQQ Note <br /> Organic <br /> 1,3-Dibromopropane 504 06/1012010205827 Blank uglL 0.5868 86.6% 70-130 <br /> LCs ug/L 0-868 97.6% 70-130 <br /> MS ug/L 0.5868 94.1% 70-130 <br /> (STK1034959-001) MSD ug/L 0.5868 93.1% 70-130 <br /> MSRPD u 0.5868 1.1% S30 <br /> BCP 504 06/10/2010.205827 Blank ug1L ND a0.01 <br /> LCs ug/L 0.2950 107% 70-130 <br /> MS ug/L 0.2950 101% 70-130 <br /> (STK1034959-001) MSD 119/1- 0.2950 98.9% 70.130 <br /> MSRPD ugIL 0.58118 2.4% S30 <br /> 13DBP 504.1 0611012010:206887 CCV u9tL 7.482 96.0% 70 130 <br /> CCV uxIL 9.976 90.2% 70-130 <br /> BCP 504.1 0611012010:206887 CCV ug/L 2.006 89.2% 70-130 <br /> CCV u IL 5.015 97.1% 70-130 <br /> Definftion <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria- <br /> Blank <br /> riteriaBlank :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 how 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.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MS12PD :MSIMSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> END :Non-detect-Result was below the DQO listed for the analyte. <br /> D22 Data 222YU D 'ective-This is the criteria against which the quality control data is com ed. <br /> Page 6 of 6 <br /> l <br />