Water Hardness Rhode Island
Here are the water hardness values for the cities in Rhode Island.
| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Cranston | 40 | 2.4 |
| East Providence | 40 | 2.4 |
| Providence | 40 | 2.4 |
| Warwick | 40 | 2.4 |
| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Cranston | 40 | 2.4 |
| East Providence | 40 | 2.4 |
| Providence | 40 | 2.4 |
| Warwick | 40 | 2.4 |