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ENVIRONMENTAL <br /> Analytical Chemists <br /> March 21, 2014 Lab ID : STK1432127 <br /> Chesney Consulting Customer : 3-15419 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO '.Vote <br /> Organic <br /> 1,2-Dibromoethane(EDB) 504 03/12/14:202755SBL Blank ug/L ND <0.02 <br /> LCS ug/L 0.2522 100% 70-130 <br /> LCS ug/L 0.1575 94.1% 70-130 <br /> MS ug/L 0.2450 103% 70-130 <br /> (STK1432000-002) MSD ug/L 0.2432 95.7% 70-130 <br /> MSRPD u 0.5677 7.6% 5530 <br /> 1,3-Dibromopropane 504 03/12/14:202755SBL Blank ug/L 0.5830 104% 70-130 <br /> LCS ug/L 0.5887 85.0% 70-130 <br /> LCS ug/L 0.3677 107% 70-130 <br /> MS ug/L 0.5720 96.1% 70-130 <br /> (STK1432000-002) MSD ug/L 0.5677 98.4% 70-130 <br /> MSRPD u 0.5677 1.5% <30 <br /> gCP 504 03/12/14:202755SBL Blank ug/L ND <0.01 <br /> LCS ug/L 0.2522 124% 70-130 <br /> LCS ug/L 0.1575 92.0% 70-130 <br /> MS ug/L 0.2450 125% 70-130 <br /> (STK1432000-002) MSD ug/L 0.2432 113% 70-130 <br /> MSRPD u 0.5677 9.8% <30 <br /> 13DBP 504.1 03/13/14:203720SBL CCV ug/L 9.975 99.0% 70-130 <br /> CCV u 7.481 81.3% 70-130 <br /> $CP 504.1 03/13/14:203720SBL CCVug/L 5.000 113% 70-130 <br /> CCV u 2.000 108% 70-130 <br /> EDB 504.1 03/13/14:203720SBL CCV ug/L 5.000 84.6% 70-130 <br /> CCV uEI 1 2.000 96.5% 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 analyted.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 /> Page 6 of 7 <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 /> 734-8435559 <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.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.281C <br />