THORNE BAY, CITY OF
Alaska - Community Water System - PWSID: AK2120216
System Information
| PWSID | AK2120216 |
| System Name | THORNE BAY, CITY OF |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1981 |
| Last Reported | Mar 20, 2026 |
Location & Contact
| State | Alaska |
| City | THORNE BAY |
| ZIP Code | 99919 |
| Address | PO Box 19110 |
| Organization | SAWYER, SAMUEL |
| Phone | - |
Population & Service
| Population Served | 470 |
| Service Connections | 251 |
Drinking Water Violations (798)
This water system has 798 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 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Apr 1, 2025 | Jun 30, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2025 | - | |
| Mar 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2025 | - | |
| Mar 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | - | - | Resolved | Mar 31, 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 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Mar 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2025 | - | |
| Jan 1, 2025 | Jan 31, 2025 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2025 | - | |
| Jan 1, 2025 | Jan 31, 2025 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2025 | - | |
| Dec 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Aug 1, 2024 | Aug 31, 2024 | MR | No | Yes | - | - | - | Resolved | Aug 31, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Dec 30, 2024 | - | |
| Jan 1, 2024 | Jan 31, 2024 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Jan 2, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.075 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jan 2, 2023 | - | |
| Jan 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Jun 14, 2022 | - | |
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Jan 1, 2022 | Jan 31, 2022 | MR | No | Yes | - | - | - | Resolved | Jan 31, 2022 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .097 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | - | MR | No | No | - | TT | - | Resolved | Aug 2, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .097 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2021 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MR | No | Yes | - | - | - | Resolved | Oct 31, 2020 | - |
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.