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June 10, 2024 <br /> Luhdorff& Scalmanini Consulting Lab No. : STK2437367 <br /> Customer No. : 3012023 <br /> Quality Control -Wet Chem <br /> Wet Chem <br /> Alkalinity(as CaCO3) 2320B (STK2437000-003) Dup mg/L 0.5% 10 <br /> (VI2443957-006) Dup mg/L 0.5% 10 <br /> Bicarbonate 2320B (STK2437000-003) Dup mg/L 0.6% 10 <br /> (VI2443957-006) Dup mg/L 0.5% 10 <br /> Carbonate 2320B (STK2437000-003) Dup mg/L 0% 10 <br /> (VI2443957-006) Dup mg/L 0% 10 <br /> E.C. 2320B (STK2437000-003) Dup umhos/cm 0.3% 5 <br /> (VI2443957-006) Dup umhos/cm 0.2% 5 <br /> Hydroxide 2320B (STK2437000-003) Dup mg/L 0% 10 <br /> (VI2443957-006) Dup mg/L 0% 10 <br /> Solids,Total Dissolved 2540CE 05/23/2024:205760CTL Blank mg/L ND <20 <br /> LCS mg/L 992.0 97.3% 90-110 <br /> (VI2443991-007) Dup mg/L 1% 5 <br /> (VI2443991-007) Dup mg/L 1.06% 5 <br /> Chloride 300.0 05/22/2024:205785LDM Blank mg/L ND <1 <br /> LCS mg/L 25.00 96.6% 90.110 <br /> MS mg/L 50.00 79.4% 67-117 <br /> (VI2443883-002) MSD mg/L 50.00 77.6% 67-117 <br /> MSRPD mg/L 0.9% :57 <br /> MS mg/L 50.00 99.1% 67-117 <br /> (CH 2473961-003) MSD mg/L 50.00 99.3% 67-117 <br /> MSRPD mg/L 0.2% 157 <br /> 300.0 05/22/2024:205696LDM Blank mg/L ND <1 <br /> LCS mg/L 25.00 102% 90-110 <br /> MS mg/L 50.00 98.9% 67-117 <br /> (VI2443991-009) MSD mg/L 50.00 98.6% 67-117 <br /> MSRPD mg/L 0.2% <_7 <br /> MS mg/L 50.00 98.6% 67-117 <br /> (SP 2408155-001) MSD mg/L 50.00 98.4% 67-117 <br /> MSRPD mg/L 0.2% <_7 <br /> Blank mg/L ND <1 <br /> LCS mg/L 25.00 98.0% 90-110 <br /> MS mg/L 50.00 83.4% 67-117 <br /> (STK2437367-005) MSD mg/L 50.00 79.9% 67-117 <br /> MSRPD mg/L 1.5% :57 <br /> Fluoride 300.0 05/22/2024:205785LDM Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 97.6% 90-110 <br /> MS mg/L 5.000 101% 89-111 <br /> (VI2443883-002) MSD mg/L 5.000 101% 89-111 <br /> MSRPD mg/L 0.2% :59 <br /> MS mg/L 5.000 103% 89-111 <br /> (CH 2473961-003) MSD mg/L 5.000 103% 89-111 <br /> MSRPD mg/L 0.1% :59 <br /> 300.0 05/22/2024:205696LDM Blank mg/L ND <0.1 <br /> LCS mg/L 2.500 101% 90-110 <br /> MS mg/L 5.000 99.1% 89-111 <br /> (VI2443991-009) MSD mg/L 5.000 99.8% 89-111 <br /> MSRPD mg/L 0.8% :59 <br /> MS mg/L 5.000 100% 89-111 <br /> (SP 2408155-001) MSD mg/L 5.000 101% 89-111 <br /> Page 14 of 17 Page 14 of 17 <br />