Laserfiche WebLink
July 12, 2019 Lab ID : STK1939670 <br />Live Oak Geo Environmental Customer : 3-16608 <br />Quality Control - Inorganic <br />Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br />Wet Chem <br />Nitrate + Nitrite as N 4500NO3F MS mg/L 28.04 37.0 % 5-285 <br />(STK1939543-001) MSD mg/L 28.04 373 % 5-285 <br />MSRPD mg/L 28.04 0.5% <30.4 <br />-1500NO3F 07/03/19:209989JMR CCB mg/L -0.004 0.2 <br />CCV mg/L 11.22 92.2 % 90-110 <br />CCB mg/L 0.017 0.2 <br />CCV mg/L 11.22 94.1% 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 />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 <br /> <br /> 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 />Page 7 of 7