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.OAGRICULTURAL <br /> Analytical Cheniists <br /> July 21,2017 Lab ID : STK1738665 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/Ill Type Units Conc. QC Data DQO Note <br /> Organic <br /> 12-Dibromoethane(EDB) 501 07/18/17:209498SBL Blank ug/L ND <0.02 <br /> LCS ug/L 0.2537 108% 70-130 <br /> LCS ug/L 0.2510 105% 70-130 <br /> BS ug/L 0.2534 111% 70-130 <br /> BSD ug/L 0.2553 113% 70-130 <br /> BSRPD ug/L 0.2553 2.5% 530 <br /> QMDL I u /L 0.01985 110% 60-140 <br /> 1,3-Dibromopropane 504 07/18117:208498SBL Blank ug/L 0.5852 110% 70-130 <br /> LES ug/L 0.5955 111% 70-130 <br /> LES ug/L 0.5892 117% 70-130 <br /> BS ug/L 0.5948 115% 70-130 <br /> BSD ug/L 0.5993 119% 70-130 <br /> BSRPD, ug/L 0.2553 43% S30 <br /> QMDL I u /L 0.5866 93.9% 1 70-130 <br /> DBCP 504 07/18/17:208498SBL Blank ug/L ND <0.01 <br /> LCS ug/L 0.2537 106% 70-130 <br /> LCS ug/L 0.2510 114% 70-130 <br /> BS ug/L 0.2534 119% 70-130 <br /> BSD ug/L 0.2553 109% 70-130 <br /> BSRPD ug/L 0.2553 7.9% 530 <br /> QMDL u /L 0.01985 1 77.0% 60-140 <br /> 13DBP 501.1 07/19/17:210594SBL CCV ug/L 7.481 112% 70-130 <br /> CCV u /L 9.975 101% 70-130 <br /> BCP 504.1 07/19/17:210594SBL CCV ug/L 2.000 91.0% 70-130 <br /> CCV u /L 5.000 101% 70-130 <br /> EDB 541.1 07/19/17:210594SBL CCV ug/L 2.000 87.0% 70-130 <br /> CCV I u /L 1 5.000 99.0% 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 /> BS :Blank Spikes-A blank is spiked with a known amount of analyte.It is prepared to verify that the preparation process is not <br /> affecting analyte recovery. <br /> BSD :Blank Spike Duplicate of BS/BSD pair-A blank duplicate is spiked with a known amount of analyte.It is prepared to verify that <br /> the preparation process is not affecting analyte recovery. <br /> BSRPD :BS/BSD Relative Percent Difference(RPD)-The BS 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 com azed. <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.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 />