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December 9, 2014 Lab ID : STK1451582 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer : 3-12023 <br /> Quality Control- Inorganic <br /> Constituent Method Date/ID 'Type Units Cone. QC Data DQO Note -- <br /> et Chem <br /> BAS 5540C 11/13/14:217741AMM CCB mg/L 0.0751 0.25 <br /> CCV mg/L 1.000 97.4% 90-110 -_ <br /> CCB mgfL 0.0751 0.25 <br /> CCV mgfL 1.000 97.4% 90-110 <br /> MBAs Extraction 5540C 11/13/14:213734AMM Blank mg/L ND <o.I <br /> LES mg/L 0.5000 98.8% 65-109 <br /> BS mg/L 0.5000 85.7% 65-109 _ <br /> BSD mg/L 0.5000 84.8% 65-109 <br /> BSRPD m 0.5000 0.0046 1 <0.1 <br /> MBAS Screen 5540C MS mg/L 10.00 100% 90-110 <br /> (SP 1413253-001) MSD eng/L 10.00 100% 90-110 <br /> MSRPD m 10.00 0.0 <0.1 <br /> Definition <br /> IC'.B : 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 /> 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 ofhow 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 analyzed.The recoveries <br /> are an indication of haw that sample matrix affects analyte recovery. <br /> BS :Blank Spikes-A blank is spiked with a known amount of analyte.It is prepared to verify that the preparation process is not <br /> affecting analyte recovery. <br /> BSD :Blank Spike Duplicate of BS/BSD pair-A blank duplicate is spiked with a known amount of analyte.It is prepared to verify that <br /> the preparation process is not affecting 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 /> BSRPD :BS/BSD Relative Percent Difference(RPD)-The BS 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 /> 435 :Sample matrix inay be affecting this analyie Data was accepted based on the LCS or CCV recovery. <br /> Page 13 of 13 <br />