Safest Drinking Water in Oregon 2026
Oregon has 5 public water systems serving 1,372,688 people. The safest system is Eugene Water & Electric Board in Eugene with a score of 100/100.
Top 5 Water Systems in Oregon
| # | Water System | City | Pop. Served | Source | Violations | Score |
|---|---|---|---|---|---|---|
| 1 | Eugene Water & Electric Board | Eugene | 176,000 | Surface water | 0 | A (100) |
| 2 | Salem Public Works | Salem | 199,820 | Surface water | 0 | B (85) |
| 3 | Medford Water Commission | Medford | 106,068 | Surface water | 0 | B (83) |
| 4 | Tualatin Valley Water District | Beaverton | 224,600 | Surface water | 0 | B (80) |
| 5 | Portland Water Bureau | Portland | 666,200 | Surface water | 1 | C (78) |
Water quality data for Oregon is sourced from the EPA Safe Drinking Water Information System (SDWIS), which tracks compliance for all public water systems.
Frequently Asked Questions
Eugene Water & Electric Board in Eugene has the highest Water Safety Score in Oregon at 100/100 (Grade A), serving 176,000 people.
Oregon has 5 public water systems serving 1,372,688 people. The average Water Safety Score is 85/100.
The Water Safety Score (0-100) is based on health violations (40%), contaminant exceedances (30%), enforcement history (20%), and monitoring violations (10%). Higher scores mean cleaner, safer water.
Water Safety Score: health violations (40%), contaminant exceedances (30%), enforcement history (20%), monitoring violations (10%).