YONCALLA, CITY OF
Oregon - Community Water System - PWSID: OR4100958
System Information
| PWSID | OR4100958 |
| System Name | YONCALLA, 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 | YONCALLA |
| ZIP Code | 97499 |
| Address | 2640 EAGLE VALLEY RD |
| Organization | YONCALLA, CITY OF |
| Phone | 541-849-2152 |
Population & Service
| Population Served | 1,050 |
| Service Connections | 598 |
Drinking Water Violations (405)
This water system has 405 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, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2025 | - | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jun 14, 2024 | - | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | - | - | - | Resolved | Feb 29, 2024 | - | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | - | - | - | Resolved | Feb 29, 2024 | - | |
| Feb 1, 2024 | Feb 29, 2024 | MR | No | Yes | - | - | - | Resolved | Feb 29, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Jul 20, 2023 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | TT | Yes | No | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | TT | Yes | No | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Mar 1, 2022 | Mar 31, 2022 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2022 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Nov 1, 2021 | Nov 30, 2021 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2021 | - | |
| Jul 1, 2020 | Jul 31, 2020 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2020 | - | |
| Jul 1, 2020 | Jul 31, 2020 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2020 | - | |
| Jul 1, 2020 | Jul 31, 2020 | MR | No | Yes | - | - | - | Resolved | Jul 31, 2020 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| May 1, 2018 | May 31, 2018 | MR | No | Yes | - | - | - | Resolved | May 31, 2018 | - | |
| May 1, 2018 | May 31, 2018 | MR | No | Yes | - | - | - | Resolved | May 31, 2018 | - | |
| May 1, 2018 | May 31, 2018 | MR | No | Yes | - | - | - | Resolved | May 31, 2018 | - | |
| Mar 1, 2018 | Mar 31, 2018 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Feb 1, 2018 | Feb 28, 2018 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2018 | - | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2018 | - | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2018 | - | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2018 | - | |
| Oct 1, 2017 | Oct 31, 2017 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2017 | - | |
| Oct 1, 2017 | Oct 31, 2017 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2017 | - | |
| Oct 1, 2017 | Oct 31, 2017 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2017 | - | |
| Dec 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Dec 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Dec 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Jun 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2016 | - | |
| Jun 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2016 | - |
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.