Water Hardness South Carolina
Here are the water hardness values for the cities in South Carolina.
| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Charleston | 58 | 3.4 |
| Columbia | 34.5 | 2.1 |
| Mount Pleasant | 49 | 2.9 |
| North Charleston | 58 | 3.4 |
| Rock Hill | 28 | 1.7 |
| Summerville | 21 | 1.3 |