MAUPIN, CITY OF
Oregon - Community Water System - PWSID: OR4100510
System Information
| PWSID | OR4100510 |
| System Name | MAUPIN, CITY OF |
| System Type | Community Water System |
| Water Source | Ground 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 | MAUPIN |
| ZIP Code | 97037 |
| Address | PO BOX 308 |
| Organization | MAUPIN, CITY OF |
| Phone | 541-395-2698 |
Population & Service
| Population Served | 420 |
| Service Connections | 340 |
Drinking Water Violations (38)
This water system has 38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | - | - | - | Archived | Jul 31, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Jun 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | - | - | Archived | Jun 30, 2025 | - | |
| Apr 10, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Aug 1, 2023 | Aug 31, 2023 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2023 | - | |
| May 1, 2023 | May 31, 2023 | MON | No | Yes | - | - | - | Resolved | May 31, 2023 | - | |
| May 1, 2023 | May 31, 2023 | MR | No | Yes | - | - | - | Resolved | May 31, 2023 | - | |
| Oct 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 2024 | - | |
| Apr 1, 2022 | Apr 30, 2022 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2022 | - | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Dec 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2020 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | - | MR | No | No | - | TT | - | Resolved | Sep 12, 2019 | - | |
| Aug 1, 2018 | Aug 31, 2018 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2018 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Apr 1, 2017 | Apr 30, 2017 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2017 | - | |
| Aug 27, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 22, 2016 | - | |
| Feb 16, 2016 | - | TT | Yes | No | - | - | - | Resolved | Mar 22, 2016 | - | |
| Feb 16, 2016 | - | TT | Yes | No | - | - | - | Resolved | Mar 22, 2016 | - | |
| Jan 1, 2016 | Jan 31, 2016 | TT | Yes | No | - | - | - | Resolved | Jan 31, 2016 | - | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2011 | - | |
| Jan 1, 2011 | Jan 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jan 31, 2011 | - | |
| Jan 1, 1997 | Dec 31, 1997 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1997 | - | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1994 | - | |
| 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 | - | - | - | - | - | - |
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.