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FGL <br /> ENVIRONMENTAL <br /> March 10, 2021 Lab ID : STK2132970 <br /> Lange Twins Customer : 3-9851 <br /> Quality Control - Organic <br /> Constituent Method Date/ID 'Type Units Cone. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 03/05/21:20246 1 JMR Blank ug/L ND <0.02 <br /> LCS ug/L 0.2402 98.7% 70-130 <br /> LCS ug/L 0.2380 126% 70-130 <br /> MS ug/L 0.2397 108% 70-130 <br /> (STK2132719-001) MSD ug/L 0.2423 122% 70-130 <br /> MSRPD u 0.5687 12.6% <30 <br /> 1,3-Dibromopropane 504 03/05/21:202461JMR Blank ug/L 0.5716 86.4% 70-130 <br /> LCS ug/L 0.5637 75.8% 70-130 <br /> LCS ug/L 0.5587 105% 70-130 <br /> MS ug/L 0.5626 81.2% 70-130 <br /> (STK2132719-001) MSD ug/L 0.5687 98.5% 70-130 <br /> MSRPD u L 0.5687 20.3% 1 530 <br /> DBC 1) 504 03/05/21:20246 1 JMR Blank ug/L ND <0.01 <br /> LCS ug/L 0.2402 89.2% 70-130 <br /> LCS ug/L 0.2380 130% 70-130 <br /> MS ug/L 0.2397 112% 70-130 <br /> (STK2132719-001) MSD ug/L 0.2423 125% 70-130 <br /> MSRPD ugtL 0.5687 12.0% 530 <br /> 131)13P 504.1 03/06/21:203328JMR CCV ug/l, 7.481 100% 70-130 <br /> CCV ug/L 9.975 73.4% 70-130 <br /> D13C1' 504.1 03/06/21:203328JMR CCV ug/L 2.000 100% 70-130 <br /> CCV ug/L 5.000 74.0% 70-130 <br /> H)B 504.1 03/06/21:203328JMR CCV ug/L 2.000 77.0% 70-130 <br /> CCV ug/L 1 5.000 1 79.6% 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 /> D O Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 4 of 4 <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 />