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 |