LYONS MEHAMA WATER DISTRICT
Oregon - Community Water System - PWSID: OR4100493
System Information
| PWSID | OR4100493 |
| System Name | LYONS MEHAMA WATER DISTRICT |
| 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 | LYONS |
| ZIP Code | 97358 |
| Address | PO BOX 134 |
| Organization | LYONS MEHAMA WATER DISTRICT |
| Phone | 503-859-2367 |
Population & Service
| Population Served | 1,300 |
| Service Connections | 824 |
Drinking Water Violations (283)
This water system has 283 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Jul 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Oct 1, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Sep 19, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | - | - | Resolved | Apr 30, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MR | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Jun 3, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Mar 31, 2025 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Nov 1, 2024 | Nov 30, 2024 | MR | No | Yes | - | - | - | Resolved | Nov 30, 2024 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Sep 29, 2025 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2024 | - | |
| Jul 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Feb 10, 2025 | - | |
| Jan 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Mar 8, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Mar 8, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Dec 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | - | Other | No | No | - | - | - | Resolved | Apr 10, 2024 | - | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2023 | - | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2023 | - | |
| Sep 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2023 | - | |
| Aug 1, 2023 | Aug 31, 2023 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2023 | - | |
| Aug 1, 2023 | Aug 31, 2023 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2023 | - | |
| Aug 1, 2023 | Aug 31, 2023 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2023 | - | |
| Jul 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Mar 8, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Apr 10, 2024 | - | |
| Jul 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Mar 8, 2024 | - |
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.