Water Hardness Oregon
Here are the water hardness values for the cities in Oregon.
| City | AVG Hardness PPM / mg/L | AVG Hardness Grains per Gallon |
|---|---|---|
| Astoria | 28 | 2 |
| Beaverton | 28.3 | 1.7 |
| Bend | 21 | 1.3 |
| Corvallis | 30.9 | 1.9 |
| Eugene | 18 | 1.1 |
| Gresham | 32 | 2 |
| Hillsboro | 28.3 | 1.7 |
| Medford | 33 | 2 |
| Portland | 41.5 | 2.5 |
| Roseburg | 32 | 2 |
| Salem | 12.3 | 0.8 |
| Springfield | 52.5 | 3.1 |
| Tigard | 41.5 | 2.5 |