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ENVIRO • , <br /> Analytical Cheniists <br /> February 25,2020 Lab ID : STK2032251 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/ID IPC Units Cone. QC Data DQO N'ote <br /> Organic <br /> 1�3-Dibromopropane 504 02/15/20:201,777MCA Blank ug/L 0.5650 99.8% 70-130 <br /> LCS ug/L 0.5720 120% 70-130 <br /> LCS ug/L 0.5663 141% 70-130 330 <br /> MS ug/L 0.5771 152% 70-130 435 <br /> (STK2031892-001) MSD ug/L 0.5739 167% 70-130 435 <br /> MSRPD ug/L 0.5739 8.7% G30 <br /> MDL ug/L 0.5656 160% 70-130 HR <br /> BCP 504 02/15t20:201777MCA Blank ug/L ND <0.01 <br /> LCS ug/L 0.2437 140% 70-130 330 <br /> LCS ug/L 0.2413 137% 70-130 330 <br /> MS ug/L 0.2459 149% 70-130 435 <br /> (STK2031892-001) MSD ug/L 0.2445 166% 70-130 435 <br /> MSRPD ug/L 0.5739 9.8% C30 <br /> MDL I ug/L 0.01914 216% 60-140 HR <br /> 13DBP 504.1 02/16/20:202817MCA CCV ug/L 7.481 164% 70-130 362 <br /> CCV ug/L 9.975 173% 70-130 362 <br /> BCP 504.1 02/16/20:202817MCA CCV ug/L 2.000 216% 70-130 360 <br /> CCV u /L 5.000 229% 70-130 360 <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 /> 330 :The LCS was out of acceptance limits.Results may be biased high. <br /> 360 :CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. <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 5 of 6 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo 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:(805)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 />