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July 14,2017 Lab XA : STK1738423 <br /> Keith Gross Wells & Pumps Customer : 3-16059 <br /> Quality Control - Organic <br /> uytitocnt Method Dame/1D Type I Units Cone. QC Data DQO Note <br /> organic <br /> 1 Z-Dibromoetltane(EDB) 504 07112/17109214SOL Blank ug(L ND <0.02 <br /> l-CS ug/L 0.2511 101 % 70-130 <br /> LCS ug/L 0.2545 101% 70-130 <br /> MS ug/L 0.2464 116% 70-130 <br /> (STK1738281-001) MSD ug/L 02462 107% 70-130 <br /> MSRPD ug/L, 0.5779 8-246 40 <br /> MDL u /L 0.02029 66-7% 60-140 <br /> 1,3-Dibromopropane SO4 07/12j17:208214SBL Blank ug/L 0-5969 93.6% 70-130 <br /> LCS ug(L 0.5894 923% 70-130 <br /> LCS ug/L 0.5973 993% 70-130 <br /> MS ug/L U783 104% 70-130 <br /> (STK 1739291-001) MST) ug/L 0.5779 97.6% '10-130 <br /> MSRPD ug/L 0.5779 6.8% G3 <br /> QMDL I ug/L 0.5996 81.6% 70-130 <br /> )BCP 504 07/1211.7:208214SBL Blank ug/L ND <001 <br /> LCS ug/L 0.251.1 9819% 70-130 <br /> LCS ug/L 0.2545 103% 70-130 <br /> MS ug/L 02464 108% 70-130 <br /> (STKI738281-001) MSD ug/L 0.7162 95.8% 70-130 <br /> MSRPD ug/L 0.5779 11,1%'0 530 <br /> QMDL I ug/L 0.02029 107% 60-140 <br /> 13DBP 504.1 07/19/17:210258SR CCV ug/L 9.975 91.0% 70-130 <br /> CCV u (L 7.481 873% 70-130 <br /> BCP 504.1 07/13/17-.210258SBL CCV ug/L 5.000 84.0% 70-130 <br /> CCV ug/L 2.000 96.0% 70-130 <br /> g 1 07/13/17-210258SBL CCV ug/L 5.000 89.6% 70-130 <br /> CCV u /1, 2.000 1 74.0% 70-130 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is witbin 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 anslyte.7be 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 /> NlS1i PA :MSlMSD 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 aualyte- <br /> 200 Data 2 Liali!XONective-This is the criteria a ainst which the quality control data i9 com d. <br /> Page 5 of 5 <br /> Corporate Offices&Laboratory Ofrlee&Laboratory Office 8 Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Strerrt 2500 Stegeooach Road 663 E.Undo Avenue 3442 Empresa Drive,Suite 0 9A15 W Goshen Avenue <br /> Santa Paula,CA 93060 Stockton,CA 95216 Chico.CA 95926 San Luis Obispo,CA 93401 VU11a,CA 93291 <br /> TEL,(806)392-2000 ML:(209)942-0182 TFI. (53M343-58118 TEL:(0051783-2940 TEL:(559)734-9472 <br /> Received Time Jul, 16, 2017 12 . 39PM No, 1898 <br />