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June 16, 2021 Lab ID : STK2138328 <br />San Joaquin Co. Environmental Health Dep Customer A-17919 <br />Quality Control - Organic <br />Constituent <br />Method <br />Date/ID <br />Type <br />Units <br />Conc. <br />QC Data <br />DQO <br />Note <br />Organic <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Visalia, CA 93291 <br />TEL: (805)392-2000 <br />TEL: (209)942-0182 <br />TEL: (530)343-5818 <br />1,3-Dibromopropane <br />X04 <br />06/11/21:206563JMR <br />Blank <br />ug/L <br />0.5707 <br />89.6% <br />70-130 <br />CA ELAP Certification No. 2810 <br />LCS <br />ug/L <br />0.5753 <br />102% <br />70-130 <br />LCS <br />ug/L <br />0.5705 <br />99.7% <br />70-130 <br />MS <br />ug/L <br />0.5723 <br />95.8% <br />70-130 <br />(STK2138245-001) <br />MSD <br />ug/L <br />0.5684 <br />74.2% <br />70-130 <br />MSRPD <br />u <br />0.5684 <br />26.0% <br /><30 <br />504 <br />06/14/21:206634JMR <br />Blank <br />ug/L <br />0.5864 <br />97.3% <br />70-130 <br />LCS <br />ug/L <br />0.5781 <br />96.1% <br />70-130 <br />LCS <br />ug/L <br />0.5703 <br />89.2% <br />70-130 <br />MS <br />ug/L <br />0.5596 <br />92.2% <br />70-130 <br />(STK2138153-001) <br />MSD <br />ug/L <br />0.5690 <br />83.3% <br />70-130 <br />MSRPD <br />ug/1. <br />0.2433 <br />8.5% <br /><_30 <br />MDL <br />u <br />0.5620 <br />85.6% <br />70-130 <br />)IiCP <br />504 <br />06/11/21:206563JMR <br />Blank <br />ug/L <br />ND <br /><0.01 <br />LCS <br />ug/L <br />0.2451 <br />104% <br />70-130 <br />LCS <br />ug(L <br />0.2431 <br />102% <br />70-130 <br />MS <br />ug(L <br />0.2438 <br />96.8% <br />70-130 <br />(STK2138245-001) <br />MSD <br />ug/L <br />0.2422 <br />70.1% <br />70-130 <br />MSRPD <br />u <br />0.5684 <br />32.7% <br /><_303 <br />504 <br />06/14/21:206634JMR <br />Blank <br />ug/L <br />ND <br /><0.01 <br />LCS <br />ug/L <br />0.2463 <br />96.2% <br />70-130 <br />LCS <br />ug/L <br />0.2430 <br />92.5% <br />70-130 <br />MS <br />ug/L <br />0.2384 <br />97.7% <br />70-130 <br />(STK2138153-001) <br />MSD <br />ug(L <br />0.2425 <br />86.1% <br />70-130 <br />MSRPD <br />ug/L <br />0.2433 <br />10.7% <br />:530 <br />MDL <br />u <br />0.01901 <br />113% <br />60-140 <br />I�I3P <br />504.1 <br />06/12/21:208861JNM <br />CCV <br />ug/L <br />7.481 <br />90.9% <br />70-130 <br />CCV <br />u <br />9.975 <br />81.4% <br />70-130 <br />504.1 <br />06/15/21:209048jmr <br />CCV <br />ug/L <br />9.975 <br />86.7% <br />70-130 <br />CCV <br />u <br />7.481 <br />90.8% <br />70-130 <br />DBO, <br />504.1 <br />06/12/21:208861JMR <br />CCV <br />ug(L <br />2.000 <br />79.0% <br />70-130 <br />CCV <br />u <br />5.000 <br />74.8% <br />70-130 <br />504.1 <br />06/15/21:209048jmr <br />CCV <br />ug/L <br />5.000 <br />86.2% <br />70-130 <br />CCV <br />u <br />2.000 1 <br />93.0% 1 <br />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 />DQO : Data Quality Objective - 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 6 <br />Corporate Offices & Laboratory <br />Office d Laboratory <br />Office & Laboratory <br />Office 3 Laboratory <br />Office & Laboratory <br />853 Corporation Street <br />2500 Stagecoach Road <br />563 E. Undo Avenue <br />3442 Empresa Drive, Suite D <br />9415 W Goshen Avenue <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />Visalia, CA 93291 <br />TEL: (805)392-2000 <br />TEL: (209)942-0182 <br />TEL: (530)343-5818 <br />TEL: (805)783-2940 <br />TEL: (559)734-9473 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 FAX: (209)942-0423 <br />FAX: (530)343-3807 <br />FAX: (805)783-2912 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 1573 <br />CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 CA ELAP Certification No. 2775 <br />CA ELAP Certification No. 2810 <br />