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ENVIRONMENTAL�� <br /> Analytical Chemists <br /> April 22,2021 Lab ID : STK2134829 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/11) 'rN pe Units Conc. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 04/15/21:204094JMR Blank ug/L ND <0.02 <br /> LCS ug/L 0.2438 104% 70-130 <br /> LCS ug/L 0.2460 994% 70-130 <br /> MS ug/L 0.2422 105% 70-130 <br /> (STK2134635-001) MSD ug/L 0.2466 103% 70-130 <br /> MSRPD ug/L 0.5788 0.7% K30 <br /> QMDL ug/L 0.01918 134% 60-140 <br /> 1,3-Dibromopropane 504 04/15/21:204094JMR Blank ug/L 0.5803 100% 70-130 <br /> LCS ug/L 0.5723 108% 70-130 <br /> LCS ug/L 0.5773 94.8% 70-130 <br /> MS ug/L 0.5684 101% 70-130 <br /> (STK2134635-001) MSD ug/L 0.5788 101% 70-130 <br /> MSRPD ug/L 0.5788 23% 830 <br /> QMDL I ug/L 0.5669 100% 1 70-130 <br /> BCP 504 04/15/21:204094JMR Blank ug/L ND <0.01 <br /> LCS ug/L 0.2438 108% 70-130 <br /> LCS ug/L 0.2460 95.0% 70-130 <br /> MS ug/L 0.2422 103% 70-130 <br /> (STK2134635-001) MSD ug/L 0.2466 103% 70-130 <br /> MSRPD ug/L 0.5788 13% <30 <br /> QMDL I ug/L 0.01918 1 116% 60-140 <br /> 13DBP 504.1 04/16/21:205531JMR CCV ug/L 7.481 100% 70-130 <br /> CCV ug/L 9.975 103% 70-130 <br /> DBCP 504.1 04/16/21:205531JMR CCV ug/L 2.000 92.5% 70-130 <br /> CCV ug/L 5.000 86.8% 70-130 <br /> EDB 504.1 04/16/21:205531JMR CCV ug/L 2.000 82.5% 70-130 <br /> CCV u /L 5.000 87.0% 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 known amount of analyte.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD 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 /> O :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 5 of 6 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 <br /> TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 <br /> Env FAX:(805)5254172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 <br /> CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 <br />