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July 1, 2021 Lab ID : STK2137140 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer : 3-12023 <br /> Quality Control - Inorganic <br /> Constituent Method Date/1D Type Units Conc. QC Data DQO Note <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (VI 2143710-001) Dup mg/L 0.07% 10 <br /> CH 2172847-003 Du m 0.8% 10 <br /> 2320B 05/27/21:208034AMM CCV mg/L 235.8 99.2% 90-110 <br /> CCV mg/L 235.8 96.0% 90-110 <br /> CCV mg/L 235.8 97.8% 90-110 <br /> CCV m 235.8 101% 90-110 <br /> Bicarbonate 2320B (VI 2143710-001) Dup mg/L 0.10/. 10 <br /> CH 2172847-003) Dup m 0.8% 10 <br /> Carbonate 2320B (VI 2143710-001) Dup mg/L 0.0 10 <br /> CH 2172847-003 Dup mg/L 0.0 10 <br /> Hydroxide 2320B (VI2143710-001) Dup mg/L 0.0 10 <br /> CH 2172847-003 Dup m L 0.0 10 <br /> Conductivity 2510B 05/28/21:208005sta ICB umhos/cm 0.11 1 <br /> CCV umhos/cm 1000 102% 95-105 <br /> CCV umhos/cm 1000 103% 95-105 <br /> CCV umhos/cm 1000 102% 95-105 <br /> E.C. 2510B 05/28/21:205946sta Blank umhos/cm ND <1 <br /> CH 2173468-002 Dup umhos/cm 0.2% 5 <br /> Total Dissolved Solids(TFR) 2540CE 05/24/21:205746CTL Blank mg/L ND <20 <br /> LCS mg/L 995.0 99.6% 90-110 <br /> (SP 2106736-001) Dup mg/L 2.7% 5 <br /> (SP 2106736-001) Dup mg/L 2.8% 5 <br /> Blank mg/L ND <20 <br /> LCS mg/L 995.0 99.9% 90-110 <br /> (CH 2173473-003) Dup mg/L 0.8% 5 <br /> CH 2173473-003 Dup mgtL 0.5% 5 <br /> Chloride 300.0 06/05/21:206261MCA Blank mg/L ND <1 <br /> LCS mg/L 25.00 104% 90-110 <br /> MS mg/L 50.00 102% 85-121 <br /> (SP 2106770-001) MSD mg/L 50.00 105% 85-121 <br /> MSRPD mg/L 10.00 2.3% .519 <br /> MS mg/L 50.00 102% 85-121 <br /> (SP 2106770-002) MSD mg/L 50.00 105% 85-121 <br /> MSRPD m 10.00 2.7% <19 <br /> 300.0 06/06/21:208554JMR CCB mg/L 0.09 1 <br /> CCV mg/L 25.00 99.3% 90-110 <br /> CCB mg/L 0.09 1 <br /> CCV mg/L 25.00 99.6% 90-110 <br /> CCB mg/L 0.00 1 <br /> CCV m 25.00 99.6% 90-110 <br /> 300.0 06/09/21:206443MCA Blank mg/L ND <1 <br /> LCS mg/L 25.00 102% 90-110 <br /> MS mg(L 50.00 96.5% 85-121 <br /> (CH 2173960-001) MSD mg/L 50.00 97.1% 85-121 <br /> MSRPD m 10.00 0.4% <19 <br /> 300.0 06/10/21:208775MCA CCB mg/L 0.08 1 <br /> CCV mg/L 25.00 98.2% 90-110 <br /> CCB mg/L 0.08 1 <br /> CCV m 25.00 98.2% 90-110 <br /> F tori is 300.0 06/05/21:206261MCA Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 106% 90-110 <br /> MS mg/L 5.000 104% 87-120 <br /> (SP 2106770-001) MSD mg/L 5.000 106% 87-120 <br /> MSRPD m 10.00 2.2% 151 <br /> Page 11 of 14 <br />