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ENVIRONMENTAL <br /> Analytical Chemists <br /> December 15, 2010 Lab ID : STK1050695 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method DatdID Type units Cone QC Data DQo Note <br /> Organic <br /> 1,3-Dibromopropanc 504 11/09/2010:212790 Blank ug/L 05868 83.8% 70-130 <br /> LCS ug/L 05868 81.9% 70-130 <br /> MS ug/L 0.5868 88.0% 70-130 <br /> (STK1050620-001) MSD ug/L 0.5868 85.6% 70-130 <br /> MSRPD u 0.5868 2.8% <br /> DB<'P 504 12/092010212790 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2950 102% 70-130 <br /> MS ug/L. 0.2950 107% 70-130 <br /> (STK1050620-001) MSD 119/1- 0.2950 104% 70-130 <br /> MSRPD u 05868 23% 530 <br /> L.DB11 504.1 111092010:215902 CCV 1 7.481 82.3% 71130 <br /> CCV 11?9 . 9.975 73.0% 70-130 <br /> CCV u 7.481 88.8% 70-130 <br /> 1)13t'P 504.1 12/092010:215842 CCV u9/1, 2.006 102% 70-130 <br /> CCV ug/L 5.015 87.5% 70-130 <br /> CCV It 2.006 118% 70-130 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument 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 how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a(mown amount of analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD Relative Pmt 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 /> DQO :Data 2U[ity Objective-This is the criteria against which the quality control data is compared. <br /> Page 6 of 7 <br /> Corporab 0lflces a Laboratory 01"ce a Laboratory Office 6 Laboratory Field office <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue V ullla,California <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 TEL 5591734-9473 <br /> TEL 805/392-2000 TEL:209/942-0182 TEL:530/343-5818 Mobile:559/737-2399 <br /> FAX:805/525A172 FAX 209/942-0423 FAX:$30/343-3807 FAX 559/734-8435 <br /> CA NELAP Certification No.01110CA CA ELAP Certification No.1563 CA ELAP Certification No.2670 <br />