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Apri130, 2014 Lab ID : STK1433259 <br /> Chesney Consulting Customer : 3-15419 <br /> Quality Control- Inorganic <br /> Constituent Method Date/1D Type Units Cone. QC Data DQO Note <br /> NN et Chem <br /> ylkahnaN(as CaCO3) 2320B (SP 1404188-00 1) Dup mg/L 14.1% 3.42 440 <br /> 2320B 04/18/14:205598AMB CCV mg/L 234.9 93.1% 90-110 <br /> CCV mg/L 234.9 93.3% 90-110 <br /> Bicarbonate 2320B (SP 1404188-001) Dup mg/L 14.1% 4.78 440 <br /> Carbonate 2320B (SP 1404188-001) Dup mg/L 0.0 10 <br /> Hydroxide 23208 (SP 1404188-001) Dup mg/L 0.0 10 <br /> Nitrate 300.0 04/17/14:204590CHL Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 103% 90-110 <br /> MS mg/L 400.0 110% 93-113 <br /> (CH 1472255-001) MSD mg/L 400.0 106% 93-113 <br /> MSRPD mg/L 100.0 3.7% 54 <br /> MS mg/L 400.0 102% 93-113 <br /> (STK1433570-001) MSD mg/L 400.0 106% 93-113 <br /> MSRPD mg/L 100.0 3.6% <4 <br /> 300.0 04/18/14:205865CHL CCV ppm 20.00 105% 90-110 <br /> CCV ppm 20.00 104% 90-110 <br /> Definition <br /> CCV Continuing Calibration Verification-Analyzed to verify the instrument calibration 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 arc an indication of how that sample <br /> matrix affccts 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 /> arc an indication of how that sample matrix affccts 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 /> DQO Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Explanation <br /> 440 Sample nonhomogcneity may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. <br /> Page 7 of 7 <br />