Oregon Water Quality Report 2026
Oregon tap water is safe to drink based on our analysis of 9 water systems serving 1,528,056 residents. The average PurityMap score is 85.0/100 (Grade: A), which is 7.1 points above the national average.
- No major contaminant flags across Oregon cities. All cities meet EPA federal drinking water standards.
Oregon water is generally good quality. A carbon pitcher or faucet filter removes chlorine taste and provides extra protection. No major filtration investment is needed for most residents.
Soft
Oregon is 7.1 points above the US average of 77.9/100. Hardness is 5.1 GPG below the US average of 6.3 GPG.
All 9 cities score similarly
How Oregon's 9 cities score on the PurityMap 0–100 scale:
Water quality for the most populated cities. Click any city for details.
| City | Population | Score | Hardness | Key Issues |
|---|---|---|---|---|
| Portland | 650K | 85/100 | 1.0 GPG | — |
| Salem | 177K | 85/100 | 0.9 GPG | — |
| Eugene | 175K | 85/100 | 0.7 GPG | — |
| Gresham | 111K | 85/100 | 1.0 GPG | — |
| Hillsboro | 107K | 85/100 | 1.5 GPG | — |
| Bend | 100K | 85/100 | 2.5 GPG | — |
| Medford | 86K | 85/100 | 1.2 GPG | — |
| Springfield | 62K | 85/100 | 0.8 GPG | — |
| Corvallis | 60K | 85/100 | 1.0 GPG | — |
Oregon generally has soft to moderate water. Average: 1.2 GPG (Soft). Most residents do not need a softener.
Based on EPA UCMR5 data, PFAS have not been detected above advisory levels in any Oregon cities in our database as of 2026.
All Oregon cities have lead below 5 ppb. Average: 1.0 ppb. Individual homes with older plumbing may have higher levels.
Where Oregon gets its drinking water, based on 9 water systems.
| Source Type | Cities | % of Total |
|---|---|---|
| Surface Water | 5 | 56% |
| Mixed (Ground + Surface) | 2 | 22% |
| Other | 1 | 11% |
| Groundwater | 1 | 11% |
Oregon water is generally good. A carbon pitcher filter improves taste.
| # | City | Pop. | Score | Hardness | Lead | PFAS | TDS |
|---|---|---|---|---|---|---|---|
| 1 | Portland | 650K | 85/100 | 1.0 GPG (Soft) | 1.2 ppb | ✅ No | 22 ppm |
| 2 | Eugene | 175K | 85/100 | 0.7 GPG (Soft) | 0.8 ppb | ✅ No | 18 ppm |
| 3 | Salem | 177K | 85/100 | 0.9 GPG (Soft) | 1.0 ppb | ✅ No | 22 ppm |
| 4 | Gresham | 111K | 85/100 | 1.0 GPG (Soft) | 1.2 ppb | ✅ No | 22 ppm |
| 5 | Hillsboro | 107K | 85/100 | 1.5 GPG (Soft) | 1.5 ppb | ✅ No | 40 ppm |
| 6 | Bend | 100K | 85/100 | 2.5 GPG (Soft) | 0.8 ppb | ✅ No | 90 ppm |
| 7 | Medford | 86K | 85/100 | 1.2 GPG (Soft) | 1.0 ppb | ✅ No | 30 ppm |
| 8 | Springfield | 62K | 85/100 | 0.8 GPG (Soft) | 0.8 ppb | ✅ No | 20 ppm |
| 9 | Corvallis | 60K | 85/100 | 1.0 GPG (Soft) | 0.8 ppb | ✅ No | 25 ppm |
Oregon has 9 utilities. Major: Portland Water Bureau, Eugene Water and Electric Board, City of Salem Public Works, Gresham Water Services, Hillsboro Water Department.
Sources: Bull Run Watershed, McKenzie River, North Santiam River, Tualatin Valley Water District, Bridge Creek groundwater.
- EPA Safe Drinking Water Information System
- EWG Tap Water Database
- State utility Consumer Confidence Reports
- USGS regional water monitoring data
PurityMap compiles publicly available data and does not perform independent testing.
9 city water quality reports available for Oregon.
Corvallis Water Quality Report
Eugene Water Quality Report
Gresham Water Quality Report
Hillsboro Water Quality Report
Medford Water Quality Report
Portland Water Quality Report
Salem Water Quality Report
Springfield Water Quality Report
Compare water quality reports across all 50 US states