The following mineral analysis was reported for a water sample taken from well No. 1 at the Eastwood Manor Subdivision near McHenry Illinois (Woller and Sanderson, 1976a).
Well No. 1, Lab No. 02694, November 9, 1971
(Note: All reported as mg · L−1 as the ion unless stated otherwise.)
Mineral | Concentration | Mineral | Concentration |
Iron (2+) | 0.2 | Silica (SiO2) | 20.0 |
Manganese (2+) | 0.0 | Fluoride | 0.35 |
Ammonium | 0.5 | Boron | 0.1 |
Sodium | 4.7 | Nitrate | 0.0 |
Potassium | 0.9 | Chloride | 4.5 |
Calcium | 67.2 | Sulfate | 29.0 |
Magnesium | 40.0 | Alkalinity | 284.0 as CaCO3 |
Barium | 0.5 | pH (as recorded) | 7.6 units |
Determine the total, carbonate, and noncarbonate hardness (in mg · L−1 as CaCO3) using the predominant polyvalent cation definition in Section 10–3.
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