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July 22,2015 Lab ID : STK1537177 <br /> Republic Services,Ine. Customer : 3-8692 <br /> Quality Control-Inorganic <br /> Constituent Method Date/[D Type Units Cone. QC Data DQO Note <br /> Wet Chem <br /> Nitrogen,Total Kjeldahl EPA351.2 07/13/15:210121AMB CCV LM L 5.000 102% 90-110 <br /> Definition <br /> ICV :Initial Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> ICB :Initial Calibration Blank-Analyzed to verify the instrument baseline is within criteria. <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 /> RgBlk :Method Reagent Blank-Prepared to correct for any reagent contributions to sample result. <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 analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> Dup :Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate.The relative percent difference is an <br /> indication of precision for the preparation and analysis. <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 /> <'/o :High Sample Background-Spike concentration was less than one forth of the sample concentration. <br /> DQO :Data Quali O!'cctive-This is the criteria against which the guality,control data is compared. <br /> Explanation <br /> 735 :Dilution water exceeded DO uptake method criteria <br /> Page 7 of 7 <br />