Water Quality in Oregon
Water hardness and contaminant data for 9 cities across Oregon. Find your city below to see a detailed water quality profile.
9
Cities
23
Avg Hardness (PPM)
30
Hardest City (PPM)
Oregon Cities by Water Hardness
| City | Hardness (PPM) | Level | PFAS (ppt) | Source |
|---|---|---|---|---|
| Hillsboro | 30 | Slightly Hard | 2 | Joint Water Commission (Hagg Lake, Barne… |
| Medford | 28 | Slightly Hard | 3 | Big Butte Springs |
| Eugene | 27 | Slightly Hard | 2 | McKenzie River |
| Corvallis | 27 | Slightly Hard | 3 | Rock Creek watershed |
| Beaverton | 24 | Slightly Hard | 3 | Portland system (Bull Run) |
| Gresham | 22 | Slightly Hard | 3 | Bull Run Reservoir (Portland system) |
| Bend | 17 | Slightly Hard | 3 | Bridge Creek, Tumalo Creek |
| Portland | 15 | Soft | 2 | Bull Run Watershed |
| Salem | 14 | Soft | 3 | North Santiam River |