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EWRONMENTAL AGRICULTURAL <br /> Analytical Cheinists <br /> May 11, 2020 Lab ID : STK2035465 <br /> Mike Thornton Customer : 3-18491 <br /> Quality Control - Organic <br /> Constituent Method WWII) I}Pc Units Conc. QC Data DQO Note <br /> Organic <br /> 1 2-Dibi-omoethane(EDB) 504 04/28/20:204722MCA Blank ug/L ND <0.02 <br /> LCS ttg(L 0.2411 134% 70-130 330 <br /> LCS ug(L 0,2434 116% 70-130 <br /> MS ug/L 0.2406 131% 70-130 435 <br /> (STK2035465-001) MSD ug/L 0.2379 122% 70-130 <br /> MSRPD ug/L 0.5584 8.2% 530 <br /> QMDI_ uglL 0.01906 191% 60-140 RERUN <br /> 1,3-Dibromopropane X04 04/28/20:204722MCA Blank ug/L 0.5664 126% 70-130 <br /> LCS ug/L. 0.5658 152% 70-130 330 <br /> LCS ug/L 0.5713 126% 70-130 <br /> MS ug/L 0.5647 142% 70-130 435 <br /> (ST,2035465-001) MSD ug(L 0.5584 131% 70-130 435 <br /> MSRPD ug/L 0.5584 9.0% 530 <br /> MDL ug/L 0.5632 135% 70-130 RERUN <br /> DBCP 5104 04/28/20.204722MCA Blank ug/L ND <0.01 <br /> LCS ug/L 0.2411 126% 70-130 <br /> LCS ug/L 0.2434 106% 70-130 <br /> MS ug/L 0.2406 119% 70-130 <br /> (STK2035465-001) MSD ug/L 0.2379 111% 70-130 <br /> MSRPD ug/L 0.5584 8.1% 530 <br /> MDl ug/L 0.01906 164% 60-140 RERUN <br /> 13DBP ;()1 1 04/29/20:206742MCA CCV ug(L 9.975 129% 70-130 <br /> CCV ug/L. 7.481 115% 70-130 <br /> CCV ug/L 9.975 139% 70-130 362 <br /> DBCP '04 1 04/29/20:206742MCA CCV ug/L 5.000 111% 70-130 <br /> CCV ug/L 2.000 101% 70-130 <br /> CCV uglL 5.000 108% 70-130 <br /> .DB X0111 04/29/20206742MCA CCV ug/L 5.000118% 70-130 <br /> CCV ug/L 2.000 106% 7U-130 <br /> CCV us/L 5.000 118% 70-130 <br /> Definition <br /> CCV Continuing Calibration Verification-Analyzed to cerit}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)-Tie MS relative percent ditTerence 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 /> DQ0 Data Quality Objective-This is die criteria against which the qualia control data is compared. <br /> Explanation <br /> 330 The LCS was out of acceptance limits.Results may be biased high. <br /> 362 Surrogates are qualified on Control Chart Limits,these are CCV limits.See individual sample reports. <br /> 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. <br /> Page 8 of 9 <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:(806)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 />