WHITE SWAN
Washington — Community Water System — PWSID: 105300026
System Information
| PWSID | 105300026 |
| System Name | WHITE SWAN |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 27, 1981 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Washington |
| City | TOPPENISH |
| ZIP Code | 98948 |
| Address | P.O. BOX 151 |
| Organization | AMBROSE, MICHAEL |
| Phone | 509-865-5121 |
Population & Service
| Population Served | 900 |
| Service Connections | 243 |
Drinking Water Violations (648)
This water system has 648 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 | — | RPT | No | No | — | — | — | Resolved | Aug 15, 2025 | — | |
| Jul 1, 2025 | Jul 31, 2025 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jul 31, 2025 | — | |
| Dec 1, 2023 | — | RPT | No | No | — | — | — | Resolved | Jan 17, 2024 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jun 11, 2022 | — | Other | No | No | — | — | — | Resolved | Feb 16, 2023 | — | |
| Jun 11, 2022 | — | Other | No | No | — | — | — | Resolved | Feb 16, 2023 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 7, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 3, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 3, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 7, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | May 17, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 7, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 3, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 3, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 7, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 7, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 3, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Dec 29, 2025 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | Oct 10, 2024 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Resolved | May 17, 2022 | — | |
| Jul 10, 2021 | — | TT | Yes | No | — | — | — | Unaddressed | — | — |
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.