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FGL <br /> ENVIRONMENTAL <br /> Analytical Chemists <br /> February 9, 2022 Lab ID : STK2231442 <br /> Knutsen Pump Testing Customer : 3-18027 <br /> Quality Control- Inorganic <br /> Constituent Method Date/ID Type Units Cone. QC Data Boo Note <br /> Wet Chem <br /> itrate+Nitrite as 450ONO3F 02/01/22:201240VVH Blank mg/L ND <0.2 <br /> LCS mg/L 11.22 101% 80-120 <br /> MS mg/L 5.609 99.14/ 5-285 <br /> (STK2231441-001) MSD mg/L 5.609 101% 5-285 <br /> MSRPD m 5.609 2.0% <_30.4 <br /> 450ONO3F 02/01/22:201643wh CCB mg/1 0.0610 0.2 <br /> CCV mg/1 11.22 99.9% 90-110 <br /> CCB m9/1 -0.00300 0.2 <br /> CCV m r 1 11.22 l00% 90-110 <br /> Nitrate Nitrogen 450ONO3F 02/01/22:201240VVH Blank m ND <)2 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria, <br /> CCB :Continuing Calibration Blank-Analyzed to verify the instrument baseline 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 /> 1DQ0 :Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Page 7 of 8 <br /> Corporate Offiees S Laboratory Office&Laboratory Office&Laboratory Office 8 Laboratory OMae&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Linda Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue <br /> Santa Paula,CA 93060 Stodamn,CA95215 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 Certifirahon No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certifirafion No.2810 <br />