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March 30, 2015 Lab ID : STK1532135 <br /> Paul Abbate Customer : 3-13758 <br /> Quality Control - Inorganic <br /> ons ituent Method WWII) Type Units Cone. QC Data DQO Note <br /> Wet Chem <br /> Chloride 300.0 03/04/15:203499MCA CCV ppm 25.00 107% 90-110 <br /> CCB ppm 0.21 1 <br /> CCV pion 25.00 108% 90-110 <br /> Nitrate 300.0 03/04/15:202666MCA Blank mg/L ND <0.5 <br /> - LCS mg/L 20.00 99.1% 90-110 <br /> MS mg/L 400.0 98.9% 85-119 <br /> (SP 1502264-003) MSD mg/L 400.0 101% 85-119 <br /> MSRPD mg/L 100.0 1.9% <_19 <br /> MS mg/L 400.0 100% 85-119 <br /> (VI 1540678-001) MSD mg/L 400.0 101% 85-119 <br /> MSRPD m 100.0 0.9% :519 <br /> 300.0 03/04/15:203499MCA CCB ppm 0.145 0.5 <br /> CCV ppm 20.00 106% 90-110 <br /> CCB ppm 0.137 0.5 <br /> CCV pion 20.00 107% 90-110 <br /> Nitrite 300.0 03/04/15:202666MCA Blank mg/L ND <0.5 <br /> LCS mg/L 15.00 101% 90-110 <br /> MS mg/L 300.0 99.0% 74-126 <br /> (SP 1502264-003) MSD mg/L 300.0 101% 74-126 <br /> MSRPD mg/L 100.0 2.1% <5'0 <br /> Ms mg/L 300.0 100% 74-126 <br /> (VI 1540678-001) MSD mg/L 300.0 101% 74-126 <br /> MSRPD mg/L 100.0 1.1% 10 <br /> 300.0 03/04115:203499MCA CCB ppm 0.052 0.5 <br /> CCV ppm 15.00 107% 90-110 <br /> CCB ppm 0.054 0.5 <br /> CCV DOM 15.00 108% 90-110 <br /> Sulfate 300.0 03/04/15:202666MCA Blank mg/L ND <2.0 <br /> LCS mg/L 50.00 99.4% 90-110 <br /> MS mg/L 1000 98.9% 82-124 <br /> (SP 1502264-003) MSD mg/L 1000 101% 82-124 <br /> MSRPD mg/L 100.0 2.1% <23 <br /> MS mg/L 1000 101% 82-124 <br /> (VI 1540678-001) MSD mg/L 1000 101% 82-124 <br /> MSRPD mg1L 100.0 0.5% 523 <br /> 300.0 03/04/15:203499MCA CCB ppm 0.55 2 <br /> CCV ppm 50.00 - 106% 90-110 <br /> CCB ppm 0.62 2 <br /> 1C--- 1 22M 50.00 108% 90-110 <br /> Definition <br /> PDS :PDS failed,matrix-Post Digestion Spike(PDS)not within Acceptance Range(AR)because of matrix interferences affecting this <br /> analyte. <br /> 1CB :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 am 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 analyzed.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 /> Page 20 of 22 <br />