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Natural Soda LLC <br />Quarterly Water Quality Data Tables <br />AG-1 Quarterly <br />Historical #'s <br />4th Qtr <br />1st Qtr <br />2nd Qtr <br />A -Groove <br />High Low Avg <br />2024 <br />2025 <br />2025 <br />Field Readings <br />12/20/24 <br />C3/17/25 <br />06/24/25 <br />Sample Date <br />Field MNL Depth to Water (ft bgs) <br />581.9 561.8 571.1 <br />563.6 <br />576.4 <br />572.9 <br />pH (51) <br />9.6 8.4 8.9 <br />9.1 <br />8.5 <br />8.6 <br />Temperature (°C) <br />22.2 10.1 16.9 <br />13.8 <br />15.1 <br />18.3 <br />Conductivity (µmhos/cm) <br />4,062 1,432 2,711 <br />3,601 <br />1 4,016 <br />3,641 <br />Lab Reference Number <br />L91995-01 <br />L93871-02 <br />L95629-04 <br />Sample Date <br />12/10/24 <br />03/31/25 <br />06/24/25 <br />Major Analytes <br />Boron (mg/L) <br />1.1 0.2 0.6 <br />0.9 <br />0.9 <br />0.8 <br />Calcium (mg/L) <br />12.2 1.3 3.2 <br />3.2 <br />2.9 <br />2.6 <br />Magnesium (mg/L) <br />18.4 2.4 9.2 <br />18.4 <br />17.5 <br />14.2 <br />Potassium (mg/L) <br />11.3 1.0 3.5 <br />1.4 <br />1.3 <br />1.4 <br />Silica (mg/L) <br />13.9 0.2 10.0 <br />12.0 <br />12.4 <br />11.5 <br />Sodium (mg/L) <br />985 303 606 <br />985 <br />950 <br />792 <br />Strontium (mg/L) <br />2.1 0.2 1.1 <br />2.1 <br />1.9 <br />1.6 <br />Bicarb (HCO3 as CaCO3) <br />1,460 198 856 <br />1410 <br />1460 <br />1330 <br />Carbonate(mg/L) <br />420 53 222 <br />420 <br />239 <br />201 <br />Alkalinity (Total as CaCO3) <br />1,830 377 1,077 <br />1830 <br />1700 <br />1530 <br />Chloride (mg/L) <br />435 92 210 <br />311.0 <br />376.0 <br />309.0 <br />Conductivity Lab (µmhos/cm) <br />3,990 1,430 2,648 <br />3,960 <br />3,990 <br />3,580 <br />Fluoride (mg/L) <br />27.5 5.5 11.8 <br />12.9 <br />15.4 <br />14.4 <br />Hardness as CaCO3 (mg/L) <br />84.0 13.0 45.9 <br />84.0 <br />79.0 <br />65.0 <br />pH Lab (51) <br />9.7 8.5 9.0 <br />8.5 <br />8.9 <br />8.6 <br />Sulfate (mg/L) <br />220.0 10.3 53.2 <br />16.3 <br />10.3 <br />11.9 <br />TDS (mg/L) <br />2,480 843 1,566 <br />2,480 <br />2,430 <br />2,090 <br />Water Level Target Range (ft.) <br />565.00 -- 585.00 <br />BG-10 Quarterly <br />Historical #'s <br />4th Qtr <br />1st Qtr <br />2nd Qtr <br />B-Groove <br />High Low Avg <br />2024 <br />2025 <br />2025 <br />Field Readings <br />11/29/24 <br />03/18/25 <br />06/23/25 <br />Sample Date <br />Field MNL Depth to Water (ft bgs) <br />541.5 439.0 454.3 <br />446.1 <br />439.0 <br />440.0 <br />pH (51) <br />9.5 7.0 9.0 <br />9.5 <br />9.5 <br />9.5 <br />Temperature (°C) <br />25.5 20.5 15.6 <br />10.5 <br />12.9 <br />12.4 <br />Conductivity (µmhos/cm) <br />1,620 2,383 1,461 <br />1,453 <br />1,403 <br />1,435 <br />Lab Reference Number <br />L91611-04 <br />L93681-02 <br />L95629-02 <br />Sample Date <br />11/19/24 <br />03/18/25 <br />06/23/25 <br />Major Analytes <br />Boron (mg/L) <br />0.8 0.4 0.7 <br />0.7 <br />0.8 <br />0.7 <br />Calcium (mg/L) <br />17.4 2.4 4.2 <br />2.4 <br />2.5 <br />2.4 <br />Magnesium (mg/L) <br />10.8 1.8 2.9 <br />1.9 <br />2.0 <br />2.0 <br />Potassium (mg/L) <br />8.0 3.4 4.8 <br />3.6 <br />3.6 <br />3.4 <br />Silica (mg/L) <br />15.8 3.3 5.0 <br />3.9 <br />3.6 <br />3.4 <br />Sodium (mg/L) <br />439 327 351 <br />342 <br />351 <br />338 <br />Strontium (mg/L) <br />0.9 0.5 0.6 <br />0.6 <br />0.6 <br />0.6 <br />Bicarb (HCO3 as CaCO3) <br />599 24 441 <br />377 <br />445 <br />435 <br />Carbonate(mg/L) <br />709 192 301 <br />405 <br />255 <br />277 <br />Alkalinity (Total as CaCO3) <br />802 700 742 <br />782 <br />700 <br />712 <br />Chloride(mg/L) <br />1070.0 21.2 83.1 <br />27.5 <br />32.4 <br />28.2 <br />Conductivity Lab (µmhos/cm) <br />1,610 1,300 1,493 <br />1,510 <br />1,390 <br />1,480 <br />Fluoride(mg/L) <br />23.8 15.0 20.1 <br />17.9 <br />22.9 <br />22.0 <br />Hardness as CaCO3 (mg/L) <br />88.0 14.0 22.3 <br />14.0 <br />24.0 <br />24.0 <br />PH Lab (SI) <br />9.7 9.2 9.4 <br />9.4 <br />9.7 <br />9.4 <br />Sulfate (mg/L) <br />18.3 18.3 u <br />u <br />U <br />U <br />TDS(mg/L) <br />1,880 810 923 <br />874 <br />844 <br />831 <br />Water Level Target Range (ft.) <br />438.00 -- 458.00 <br />Daub & Associates, Inc. <br />Natural Soda LLC <br />Page 84 of 88 2025 2nd Quarter EPA Report <br />