Water Hardness Missouri
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Water Hardness Missouri

Here are the water hardness values for the cities in Missouri.
City AVG Hardness PPM / mg/L AVG Hardness Grains per Gallon
Blue Springs 114 6.7
Columbia 170 10
Independence 120 7.1
Kansas City 110 6.5
Lee's Summit 109 6.4
O'Fallon 135 7.9
Springfield 156.1 9.2
St. Charles 124 7.3
St. Louis 140 8.2
St. Peters 135 7.9