WEST MESA DOMESTIC WATER ASSN
Washington - Community Water System - PWSID: WA5394830
System Information
| PWSID | WA5394830 |
| System Name | WEST MESA DOMESTIC WATER ASSN |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 7, 1981 |
| Last Reported | Jun 19, 2026 |
Location & Contact
| State | Washington |
| City | Othello |
| ZIP Code | 99344 |
| Address | 111 Pump Access Rd |
| Organization | WEST MESA DOMESTIC WATER ASSN |
| Phone | - |
Population & Service
| Population Served | 316 |
| Service Connections | 114 |
Drinking Water Violations (244)
This water system has 244 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Jan 1, 2022 | Dec 31, 2022 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2022 | - | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jan 1, 2021 | Dec 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2021 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Jan 1, 2018 | Dec 31, 2018 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Nov 30, 2015 | - | |
| Feb 1, 2015 | Feb 28, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2015 | - | |
| Aug 1, 2014 | Aug 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Resolved | Aug 10, 2017 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2014 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Dec 1, 2013 | Dec 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2013 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Aug 30, 2012 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 2 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.006 mg/L | - | Resolved | Dec 31, 2019 | - | |
| Jan 1, 2011 | Dec 31, 2019 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2019 | - |
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.