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ENVIRONMENTAL <br /> Analytical Chernists <br /> June 11,2019 Lab ID : STK1937722 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/ID 1)1W Units Conc. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 06/05/19:206269BJW Blank ug/L ND <0.02 <br /> QMDL ug/L 0.01971 139% 0-300 <br /> LCS ug/L 0.2438 126% 70-130 <br /> LCS ug/L 0.2457 109% 70-130 <br /> MS ug/L 0.2427 107% 70-130 <br /> (STK 1937765-00 1) MSD ug/L 0.2487 97.5% 70-130 <br /> MSRPD ug/L 0.5815 7.1% 530 <br /> 1,3-Dibromopropane 504 06/05/19:206269BJW Blank ug/L 0.5710 100% 70-130 <br /> QMDL ug/L 0.5803 109% 70-130 <br /> LCS ug/L 0.5698 109% 70-130 <br /> LCS ug/L 0.5744 105% 70-130 <br /> MS ug/L 0.5672 106% 70-130 <br /> (STK1937765-001) MSD ug/L 0.5815 101% 70-130 <br /> MSRPD ug/L 0.5815 2.8% 530 <br /> DIWI' 504 06/05/19:206269BJW Blank ug/L ND <0.01 <br /> QMDL ug/L 0.01970 139% 0-300 <br /> LCS ug/L 0.2437 123% 70-130 <br /> LCS ug/L 0.2456 114% 70-130 <br /> MS ug/L 0.2425 120% 70-130 <br /> (STK1937765-001) MSD ug/L 0.2486 111% 70-130 <br /> MSRPD I ug/L 0.5815 1 5.1% 530 <br /> 13DBP 504.1 06/06/19:208314BJW CCV ug/L 9.975 97.5% 70-130 <br /> CCV ug/L 7.481 107% 70-130 <br /> BCP 504.1 06/06/19:208314BJW CCV ug/L 5.018 103% 70-130 <br /> CCV ug/L 2.007 130% 70-130 <br /> B 504.1 06/06/19:208314BJW CCV ug/L 5.020 109% 70-130 <br /> CCV ug/L 2.008 126% 1 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 /> LES :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 6 of 7 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Undo 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)525-4172/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 />