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Ea 2 <br /> ENVIKONMENTAL <br /> Analytical Chemists <br /> March 24, 2017 Lab ID : STK1732832 <br /> Diane Alley Customer : 3-17752 <br /> Quality Control -Inorganic <br /> Constituent Method DateAD Type Units Cone. QC Data DQO Note <br /> Wet Chem <br /> Nitrate 300.0 03111117:203001MCA Blank mg(L ND X0.5 <br /> LCS mg/L 20.00 98.1 `7a 90-110 <br /> IVIS mg/L 400.0 98.3% 85-119 <br /> (STK1732812-003) MSD m91L 400.0 96.9% 85-119 <br /> MSRPD mg1L 500.0 1.3% <19 <br /> MS mg/L 400.0 97.2% 85-119 <br /> (STK1732830-002) MSD mg1L 400.0 97.3% 85-119 <br /> MSRPD m 500.0 0.1% 1 <19 <br /> 300.0 103/12/17:203729MCA CCB ppm 0.000 0.5 <br /> CCV ppm 20,00 97-9% 90-110 <br /> CCB ppm 0.000 0.5 <br /> CCV m 20.00 98.1% 90-110 <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 isnot affecting analyte recovery. <br /> MS :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an ihdicatiodof how that sample <br /> matrix affects analyte recovery. <br /> MSB :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyzed.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 5 of 5 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 00 <br /> 853 Corporation Street 25Stagecoach 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 /> Env FAX:(805)525.4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3607 FAX:(805)783-2912 FAX:(559)734-8435 <br /> CA ELAP Certification No.1573 CA FLAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 <br />