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<br />ENVIRONMENTAL = AGRICULTURAL <br />Analytical Chemists <br />March 4,2019 <br /> Lab ID : STK1932534 <br />Live Oak Geo Environmental <br /> Customer : 3-16608 <br />Quality Control - Organic <br />Constituent Method Date/ID 'IrM)e. Units Cone. QC Data DQO Note <br />Organic <br />1,2-Dibromoethane(EDB) 504 02/21/19:201843BJW Blank ug/L ND <0.02 <br />LCS ug/L 0.2488 114% 70-130 <br />LCS ug/L 0.2484 108 % 70-130 <br />MS ug/L 0.2480 108 % 70-130 <br />(STK1932316-001) MSD ug/L 0.2455 106% 70-130 <br />MSRPD ug/L 0.5761 23% .:30 <br />1,3-Dibromopropane 504 02/21/19:201843BJW Blank ug/L 0.5764 104% 70-130 <br />LCS ug/L 0.5838 107% 70-130 <br />LCS ug/L 0.5830 101 % 70-130 <br />MS ug/L 0.5820 90.6 % 70-130 <br />(STK1932316-001) MSD ug/L 0.5761 98.9% 70-130 <br />MSRPD ug/L 0.5761 7.8% <30 <br />DBCP 504 02/21/19:201843BJW Blank ug/L ND <0.01 <br />LCS ug/L 0.2488 116% 70-130 <br />LCS ug/L 0.2484 110% 70-130 <br />MS ug/L 0.2480 105% 70-130 <br />(STK1932316-001) MSD ug/L 0.2455 111 % 70-130 <br />MSRPD ug/L 0.5761 4.2% <30 <br />I3DBP 504.1 02/22/19:202593BJW CCV ug/L 7.481 106% 70-130 <br />CCV ug/L 9.975 109 % 70-130 <br />DBCP 504 I 02/22/19:202593BJW CCV ug/L 2.000 120 % 70-130 <br />CCV ug/L 5.000 124% 70-130 <br />EDB 504 I 02/22/19:202593BJW CCV ug/L 2.000 102 % 70-130 <br />CCV ug/L 5.000 110% 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 <br /> <br /> Matrix Spike Duplicate of MS/MSD pair - A random sample duplicate is spiked with a known amount of analyted. The recoveries <br />are an indication of how that sample matrix affects analyte recovery. <br />: MSRPD <br /> <br /> 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 />Page 6 of 7 <br />Corporate Offices & Laboratory <br />853 Corporation Street <br />Santa Paula, CA 93060 <br />TEL: (805)392-2000 <br />Env FAX: (805)525-4172 /Ag FAX: <br />CA ELAP Certification No. 1573 <br />Office & Laboratory Office & Laboratory <br />2500 Stagecoach Road 563 E. Lindo Avenue <br />Stockton, CA 95215 Chico, CA 95926 <br />TEL: (209)942-0182 TEL: (530)343-5818 <br />(805)392-2063 FAX: (209)942-0423 FAX: (530)343-3807 <br />CA ELAP Certification No. 1563 CA ELAP Certification No. 2670 <br />Office & Laboratory <br />3442 Empresa Drive, Suite D <br />San Luis Obispo, CA 93401 <br />TEL: (805)783-2940 <br />FAX: (805)783-2912 <br />CA ELAP Certification No. 2775 <br />Office & Laboratory <br />9415W. Goshen Avenue <br />Visalia, CA 93291 <br />TEL: (559)734-9473 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 2810