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ENVIRONMENTAL - _ - <br /> Analytical Chemists <br /> • February 21,2018 Lab ID : STKI832058 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Inorganic <br /> Constituent Method Date/1D Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Nitrate+Nitrite as N 450ONO3F MS mg/L 28.04 383% 5-285 <br /> (STK1832058-001) MSD mg/L 28.04 39.5% 5-285 <br /> MSRPD mg/L 28.04 2.8% S30.4 <br /> 450ONO3F 02/14/18:202125JDD CCB mg/L 0.001 0.1 <br /> CCV mg/L 11.27 98.1% 90-110 <br /> CCB mg/L 0.037 0.1 <br /> CCV I mg/L 1 11.27 1 98.4% 90-I10 <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 /> 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 MSIMSD 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 /> DQO Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> • <br /> • Page 3 of 3 <br /> Corporate Offices&Laboratory Ogee&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:(5301343-5818 TEL:(805)783-2940 TEL:(559)734-9473 <br />