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ENVIRONMENTAL�­ <br /> Analytical Cheniists <br /> September 10,2020 Lab ID : STK2052338 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Organic <br /> 1.2-Dibromoethane(EDB) 504 09/02/20:210322MCA QMDL ug/L 0.01897 130% 60-140 <br /> Blank ug/L ND <0.02 <br /> LCs ug/L 0.2384 104% 70-130 <br /> LCs ug/L 0.2403 99.5% 70-130 <br /> MS ug/L 0.2409 92.2% 70-130 <br /> (SP 2000358-077) MSD ug/L 0.2383 112% 70-130 <br /> MSRPD ug/L 0.5593 17.8% 830 <br /> 1,3-Dibromopropane 504 09/02/20:210322MCA QMDL ug/L 0.5606 121% 70-130 <br /> Blank ug/L 0.5692 129% 70-130 <br /> LCS ug/L 0.5596 129% 70-130 <br /> LCS ug/L 0.5639 130% 70-130 <br /> Ms ug/L 0.5655 126% 70-130 <br /> (SP 2000358-077) MSD ug/L 0.5593 140% 70-130 435 <br /> MSRPD I ug/L 0.5593 9.6% 1 <30 <br /> BCP 504 09/02/20:210322MCA QMDL ug/L 0.01897 139% 60-140 <br /> Blank ug/L ND <0.01 <br /> LCS ug/L 0.2384 123% 70-130 <br /> LCS ug/L 0.2403 123% 70-130 <br /> MS ug/L 0.2409 115% 70-130 <br /> (SP 2000358-077) MSD ug/L 0.2383 136% 70-130 435 <br /> MSRPD 1112/1" 0.5593 1 15.8% S30 <br /> 13DBP 504.1 09/03/20:214360MCA CCV u�/L. 9.975 112% 70-130 <br /> CCV ug/L 7.481 117% 70-130 <br /> BCP 504.1 09/03/20:214360MCA CCV ug/L 5.000 107% 70-130 <br /> CCV ug/L 2.000 97.5% 70-130 <br /> DB 504.1 09/03/20:214360MCA CCV ug/L 5.000 90.8% 70-130 <br /> CCV ug/L 1 2.000 87.0% 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 /> 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 Ob'ective-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 /> 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.1673 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 <br />