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ENVIRO . , <br /> Analytical Chemists <br /> • October 15,2018 Lab ID : STKI854470 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> onstitaent Method Date/11) Type Units Conc. QC Data DQO Note <br /> rganic <br /> 1,2-Dibromoethane(EDB) 504 10/09/18:212043BIW Blank ug/L ND <0.02 <br /> LCS ug/L 0.2886 94.8% 70-130 <br /> LCS ug/L 0.2895 91.8% 70-130 <br /> MS ug/L 0.2939 177% 70-130 435 <br /> (STK1854398-001) MSD ug/L 0.2922 90.0% 70-130 <br /> MSRPD u /L 0.5830 65.7% G30 435 <br /> 0-Dibromopropane 504 10/09/18:212043BJW Blank ug/L 0.5753 115% 70-130 <br /> LCs ug/L 0.5758 99.4% 70-130 <br /> LCs ug/L 0.5776 105% 70-130 <br /> MS ug/L 0.5862 109% 70-130 <br /> (STK1854398-001) MSD ug/L 0.5830 109% 70-130 <br /> MSRPD u /L 0.5830 1.2% <_30 <br /> DBCP 504 10/09/18:212043BJW Blank ug/L ND <0.01 <br /> LCS ug/L 0.2886 104% 70-130 <br /> LCS ug/L 0.2895 112% 70-130 <br /> MS ug/L 0.2939 212% 70-130 435 <br /> (STK1854398-001) MSD ug/L 0.2922 116% 70-130 <br /> MSRPD u /L 0.5830 59.6% <30 435 <br /> 13DBP 504.1 10/10/18:214843BIW CCV ug/L 9.975 105% 70-130 <br /> CCV u /L 7.481 123% 70-130 <br /> BCP 504.1 10/10/18:214843BJW CCV ug/L 5.000 127% 70-130 <br /> • CCV u /L 2.000 128% 70-130 <br /> B 504.1 10/10/18:214843BJW CCV ug/L 5.000 101% 70-130 <br /> CCV u /L 1 2.000 93.0% 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 analyted.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 /> ,DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Explanation <br /> 435 :Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. <br /> • <br /> Page 5 of 5 <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)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 />