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AM <br /> ENVIRONMENTAL . , <br /> Analytical Cheniists <br /> June 28,2019 Lab ID : STK1938943 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent 'Method Date/ID 'I N lx Units Cone. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 06/19/19:206848BJW Blank ug/L ND <0.02 <br /> LES ug/L 0.2488 96.0% 70-130 <br /> LCS ug/L 0.2443 101% 70-130 <br /> MS ug/L 0.2493 106% 70-130 <br /> (STKI938023-001) MSD ug/L 0.2504 101% 70-130 <br /> MSRPD u /L 0.5852 4.7% S30 <br /> 13-Dibromopropane 504 06/19/19:206848BJW Blank ug/L 0.5803 125% 70-130 <br /> LCS ug/L 0.5816 95.7% 70-130 <br /> LCS ug/L 0.5710 129% 70-130 <br /> MS ug/L 0.5827 128% 70-130 <br /> (STK1938023-001) MSD ug/L 0.5852 113% 70-130 <br /> MSRPD I u /L 0.5852 123% 1 C30 <br /> BCP X04 06/19/19:206848BJW Blank ug/L ND <0.01 <br /> LCS ug/L 0.2487 83.0% 70-130 <br /> LCS ug/L 0.2441 98.1 % 70-130 <br /> MS ug/L 0.2491 107% 70-130 <br /> (STK1938023-001) MSD ug/L 0.2502 94.0% 70-130 <br /> MSRPD u /L 1 0.5852 12.2% 530 <br /> 13DBP 504.1 06/21/19:209248BJW CCV ug/L 7.481 105% 70-130 <br /> CCV I u /L 9.975 116% 70-130 <br /> BCP 504.1 (0) /21/19:209248BJW CCV ug/L 2.007 109% 70-130 <br /> CCV u /L 5.018 103% 70-130 <br /> B 504.1 06/21/19:209248BJW CCV ug/L 2.008 102% 70-130 <br /> CCV u /L 5.020 1 105% 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 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 />