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March 28,2019 <br />Lab ID : STK1933761 <br />Live Oak Geo Environmental Customer : 3-16608 <br />Quality Control - Organic <br />Constituent Method Date/ID Type Units Cone. QC Data DQO Note <br />Organic <br />1,2-Dibromoethane(EDB) 504 03/25/19:203237BJW Blank ug/L ND <0.02 <br />LCS ug/L 0.2482 103% 70-130 <br />BS ug/L 0.2504 107% 70-130 <br />BSD ug/L 0.2484 112% 70-130 <br />BSRPD ug/L 0.5806 4.1% <30 <br />1,3-Dibromopropane 504 03/25/19:203237BJW Blank ug/L 05748 111 % 70-130 <br />LCS ug/L 0.5803 96.9 % 70-130 <br />BS ug/L 0.5854 103 % 70-130 <br />BSD ug/L 0.5806 111 % 70-130 <br />BSRPD ug/L 0.5806 63% <30 <br />DBCP 504 03/25/19:203237BJW Blank ug/L ND <0.01 <br />LCS ug/L 0.2481 102% 70-130 <br />BS ug/L 0.2503 108 % 70-130 <br />BSD ug/L 0.2483 118% 70-130 <br />BSRPD ug/L 0.5806 8.2% <30 <br />13DBP 504.1 03/26/19:204241BJW CCV ug/L 7.481 102 % 70-130 <br />CCV ug/L 9.975 124% 70-130 <br />DBCP 504.1 03/26/19:204241BJW CCV ug/L 2.007 99.7% 70-130 <br />CCV ug/L 5.018 119% 70-130 <br />EDB 504.1 03/26/19:204241BJW CCV ug/L 2.008 91.1 % 70-130 <br />CCV ug/L 5.020 124% 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 />: BS Blank Spikes - A blank is spiked with a known amount of analyte. It is prepared to verify that the preparation process is not <br />affecting analyte recovery. <br />BSD : Blank Spike Duplicate of BS/BSD pair - A blank duplicate is spiked with a known amount of analyte. It is prepared to verify that <br />the preparation process is not affecting analyte recovery. <br />BSRPD : BS/BSD Relative Percent Difference (RPD) - The BS 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. Undo 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