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December 27, 2021 Lab ID : STK2156869 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer : 3-12023 <br /> Quality Control- Inorganic <br /> Constituent Method Date/[D Type Units Cone. QC Data DQO Note <br /> Metals <br /> Potassium 200.7 (VI 2149432-003) MSD mg/L 12.00 90.9% 75-125 <br /> MSRPD mg/L 4000 7.0% 520.0 <br /> 200.7 11/29/21:218541AC CCV ppm 25.00 95.0% 90-110 <br /> CCB ppm -0.05 1 <br /> CCV ppm 25.00 94.6% 90-110 <br /> CCB ppm 0.02 1 <br /> CCV ppm 25.00 94.2% 90-110 <br /> CCB ppm -0.10 1 <br /> Sodium 200.7 MS mg/L 12.00 68.9% <'/4 <br /> (VI 2149432-003) MSD mg/L 12.00 63.7% <'/4 <br /> MSRPD mg/L 4000 0.5% 520.0 <br /> 200.7 11/29/21:218541AC CCV ppm 25.00 97.2% 90-110 <br /> CCB ppm -0.002 1 <br /> CCV ppm 25.00 96.4% 90-110 <br /> CCB ppm -0.004 1 <br /> CCV ppm 25.00 95.0% 90-110 <br /> CCB ppm 0.01 l <br /> inc 200.7 MS ug/L 800.0 106% 75-125 <br /> (VI 2149432-003) MSD ug/L 800.0 98.5% 75-125 <br /> MSRPD ug/L 4000 7.2% 5_20.0 <br /> 200.7 11/29/21:218541AC CCV ppm 1.000 107% 90-110 <br /> CCB ppm -0.00006 0.02 <br /> CCV ppm 1.000 108% 90-110 <br /> CCB ppm -0.0004 0.02 <br /> CCV ppm 1.000 108% 90-110 <br /> CCB PPM -0.0002 0.02 <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (SP 2116730-004) Dup m 9.2 10 <br /> 2320B 12/05/21:218869AMM CCV mg/L 235.8 99.0% 90-110 <br /> CCV mg/L 235.8 96.7% 90-110 <br /> CCV mg/L 235.8 93.1% 90-110 <br /> Bicarbonate 2320B (SP 2116730-004) Du mg/L 11 10 440 <br /> Carbonate 2320B (SP 2116730-004) Dup mg/L 0.0 10 <br /> Hydroxide 2320B SP 2116730-004) Dup mg/L 0.0 10 <br /> Conductivity 2510B 12/03/21:218786sta ICB umhos/cm 0.0800 1 <br /> ICV umhos/cm 999.0 97.3% 95-105 <br /> CCV umhos/cm 999.0 97.0% 95-105 <br /> CCV umhos/cm 999.0 96.2% 95-105 <br /> E.C. 25I0B 12/03/21:213983sta Blank umhos/cm ND <1 <br /> (CH 2179530-001) Dup umhos/cm 1% 5 <br /> Blank umhos/cm ND <1 <br /> STK2156869-005) Dup umhos/cm 0.4% 5 <br /> Total Dissolved Solids(TFR) 2540CE 11/23/21:213669CTL Blank mg/L ND <20 <br /> LCS mg/L 991.2 101% 90-110 <br /> (CC 2184230-001) Dup mg/L 2.7% 5 <br /> (CC 2184230-001) Du m L 2.3% 5 <br /> Chloride 300.0 11/23/21:213682NJB Blank mg/L ND <1 <br /> LCS mg/L 25.00 99.1% 90-110 <br /> MS mg/L 50.00 92.2% 85-121 <br /> (SP 2115756-004) MSD mg/L 50.00 97.3% 85-121 <br /> MSRPD mg/L 10.00 3.8% <19 <br /> MS mg/L 50.00 95.7% 85-121 <br /> (SP 2115794-001) MSD mg/L 50.00 98.7% 85-121 <br /> MSRPD mg/L 10.00 2.7% 1519 <br /> Page 8 of 10 <br />