Water quality in Corvallis, Oregon
Corvallis is in Benton County. 47 active public water systems serve the county; 35 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Benton County
13 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ridgewood Dist Improv CO |
90 | 1 | 3.1 mi | |
| North Corvallis Mhp-Well #1 |
100 | 3 | 3.9 mi | |
| Cascade View Estates |
113 | 1 | 4.5 mi | |
| Philomath Public Works |
4,670 | 1 | 4.6 mi | |
| Raintree Estates |
50 | 1 | 5.3 mi | |
| Vineyard Mountain Water |
325 | 2 | 5.5 mi | |
| Adair Village Water System |
875 | 2 | 7.8 mi | |
| Pioneer Village Water Company |
80 | 1 | 9.3 mi | |
| Fir View Water Company |
150 | 1 | 10.5 mi | |
| Monroe, City of |
723 | 5 | 17.3 mi | |
| Alsea County Service District |
202 | 1 | 20.5 mi | |
| Knoll Terrace Park |
452 | 5 | — | |
| Jackson Creek Water Association |
39 | 6 | — |
Non-community systems in Benton County (33: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Benton County, nearest to Corvallis first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Oregon records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.