OLD HARBOR
PWS ID: AK2250061 · OLD HARBOR, Alaska 99643
Population Served
246
Total Violations
901
Health-Based Violations
55
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 99
- County
- Kodiak Island Borough
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 707
- Treatment Tech Violations
- 55
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 103 | 2025 |
| Chlorine | MR | 66 | 2025 |
| Surface Water Treatment Rule | TT | 55 | 2025 |
| Coliform (TCR) | MR | 52 | 2015 |
| Revised Total Coliform Rule | MON | 23 | 2025 |
| Lead and Copper Rule | MR | 20 | 2024 |
| Nitrate | MR | 18 | 2023 |
| p-Dichlorobenzene | MR | 11 | 2023 |
| 1,1,1-Trichloroethane | MR | 11 | 2023 |
| Trichloroethylene | MR | 11 | 2023 |
| Benzene | MR | 11 | 2023 |
| 1,2-Dichloroethane | MR | 11 | 2023 |
| Carbon tetrachloride | MR | 11 | 2023 |
| 1,1-Dichloroethylene | MR | 11 | 2023 |
| Arsenic | MR | 10 | 2002 |
| o-Dichlorobenzene | MR | 10 | 2023 |
| CHLOROBENZENE | MR | 10 | 2023 |
| Toluene | MR | 10 | 2023 |
| Tetrachloroethylene | MR | 10 | 2023 |
| Ethylbenzene | MR | 10 | 2023 |
| Xylenes, Total | MR | 10 | 2023 |
| Styrene | MR | 10 | 2023 |
| trans-1,2-Dichloroethylene | MR | 10 | 2023 |
| Consumer Confidence Rule | Other | 10 | 2023 |
| cis-1,2-Dichloroethylene | MR | 10 | 2023 |
| 1,2-Dichloropropane | MR | 10 | 2023 |
| Barium | MR | 9 | 2000 |
| Chromium | MR | 9 | 2000 |
| Selenium | MR | 9 | 2000 |
| Cadmium | MR | 9 | 2000 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.