CORVALLIS, CITY OF
Oregon — Community Water System — PWSID: OR4100225
System Information
| PWSID | OR4100225 |
| System Name | CORVALLIS, CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Oregon |
| City | CORVALLIS |
| ZIP Code | 97339 |
| Address | PO BOX 1083 |
| Organization | CORVALLIS, CITY OF |
| Phone | 541-754-1758 |
Population & Service
| Population Served | 61,468 |
| Service Connections | 17,489 |
Drinking Water Violations (39)
This water system has 39 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | — | — | — | Resolved | Oct 31, 2020 | — | |
| Jul 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Dec 9, 2020 | — | |
| Jul 1, 2020 | — | MR | No | No | — | TT | — | Resolved | Dec 9, 2020 | — | |
| Jun 1, 2020 | Jun 30, 2020 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2020 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Dec 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | MR | No | Yes | — | — | — | Resolved | Aug 31, 2017 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Mar 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | — | — | Resolved | Mar 31, 2012 | — | |
| Dec 1, 2011 | Dec 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | — | |
| Dec 1, 2011 | Dec 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2011 | — | |
| Jun 24, 1979 | Jun 23, 1980 | MR | No | No | — | 4.0 mg/L | — | Archived | Jun 23, 1980 | — | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | — | 15 pCi/L | — | Archived | May 31, 1980 | — | |
| Jun 1, 1976 | May 31, 1980 | MR | No | No | — | 5 pCi/L | — | Archived | May 31, 1980 | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.