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December 22, 2020 Lab ID : STK2056526 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer : 3-12023 <br /> Quality Control - Inorganic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Chloride 300.0 11/25/20:214055JMR MSRPD mg/L 10.00 0.1% 519 <br /> 300.0 11/25/20:219093JMR CCB mg/L 0.07 1 <br /> CCV mg/L 25.00 100% 90-110 <br /> CCB mg/L 0.07 1 <br /> CCV m 25.00 100% 90-110 <br /> Fluoride 300.0 11/25/20:214055JMR Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 98.8% 90-110 <br /> MS mg/L 5.000 100% 87-120 <br /> (VI 2049248-001) MSD mg/L 5.000 101% 87-120 <br /> MSRPD mg/L 10.00 0.2% 5516 <br /> MS mg/L 5.000 98.3% 87-120 <br /> (STK2056487-001) MSD mg/L 5.000 98.3% 87-120 <br /> MSRPD mg/L 10.00 0.04% 516 <br /> 300.0 11/25/20:219093JMR CCB mg/L 0.000 0.1 <br /> CCV mg/L 2.500 101% 90-110 <br /> CCB mg/L 0.000 0.1 <br /> CCV m 2.500 101% 90-110 <br /> Nitrate 300.0 11/25/20:214055JMR Blank mg/L ND <0.4 <br /> LCS mg/L 20.00 99.1% 90-110 <br /> MS mg/L 40.00 98.8% 85-119 <br /> (VI 2049248-001) MSD mg/L 40.00 98.7% 85-119 <br /> MSRPD mg/L 10.00 0.07% .519 <br /> MS mg/L 40.00 98.2% 85-119 <br /> (STK2056487-001) MSD mg/L 40.00 98.0% 85-119 <br /> MSRPD mg/L 10.00 0.1% 5519 <br /> 300.0 11/25/20:219093JMR CCB mg/L 0.070 0.5 <br /> CCV mg/L 20.00 101% 90-110 <br /> CCB mg/L 0.000 0.5 <br /> CCV mg/L 20.00 101% 90-110 <br /> Nitrate+Nitrite as N 300.0 I1/25/20:2140557MR Blank mg/L ND <0.1 <br /> Nitrate Nitrogen 300.0 11/25/20:214055JMR Blank mg/L ND <0.1 <br /> Nitrite 300.0 11/25/20:214055JMR Blank mg/L ND <0.5 <br /> LCS mg/L 15.00 98.5% 90-110 <br /> MS mg/L 30.00 99.9% 74-126 <br /> (VI 2049248-001) MSD m9/L 30.00 100% 74-126 <br /> MSRPD mg/L 10.00 0.3% :520 <br /> MS mg/L 30.00 98.4% 74-126 <br /> (STK2056487-001) MSD mg/L 30.00 98.7% 74-126 <br /> MSRPD m L 10.00 0.3% 520 <br /> 300.0 11/25/20:219093JMR CCB mg/L 0.000 0.5 <br /> CCV mg/L 15.00 100% 90-110 <br /> CCB mg/L 0.000 0.5 <br /> CCV mg/L 15.00 98.8% 90-110 <br /> Nitrite Nitrogen 300.0 11/25/20:214055JMR Blank mg/L ND <0.2 <br /> Sulfate 300.0 11/25/20:214055JMR Blank mg/L ND <0.5 <br /> LCS mg/L 50.00 98.9% 90-110 <br /> MS mg/L 100.0 99.1% 82-124 <br /> (VI 2049248-001) MSD mg/L 100.0 99.0% 82-124 <br /> MSRPD mg/L 10.00 0.1% _523 <br /> MS mg/L 100.0 97.0% 82-124 <br /> (STK2056487-001) MSD mg/L 100.0 96.9% 82-124 <br /> MSRPD m 10.00 0.1% 523 <br /> 300.0 11/25/20:219093JMR CCBmg/L 0.173 0.5 <br /> CCV m L 50.00 101% 90-110 <br /> Page 10 of 11 <br />