LARSEN BAY WATER SYSTEM
PWS ID: AK2250134 · LARSEN BAY, Alaska 99624-0008
Population Served
271
Total Violations
1,150
Health-Based Violations
70
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 89
- County
- Kodiak Island Borough
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 967
- Treatment Tech Violations
- 69
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 124 | 2025 |
| Coliform (TCR) | MR | 71 | 2014 |
| Surface Water Treatment Rule | TT | 68 | 2011 |
| Chlorine | MR | 59 | 2022 |
| Nitrate | MR | 24 | 2023 |
| Carbon tetrachloride | MR | 17 | 2023 |
| 1,1-Dichloroethylene | MR | 17 | 2023 |
| Benzene | MR | 17 | 2023 |
| 1,1,1-Trichloroethane | MR | 17 | 2023 |
| Trichloroethylene | MR | 17 | 2023 |
| 1,2-Dichloroethane | MR | 17 | 2023 |
| p-Dichlorobenzene | MR | 17 | 2023 |
| Xylenes, Total | MR | 16 | 2023 |
| CHLOROBENZENE | MR | 16 | 2023 |
| Toluene | MR | 16 | 2023 |
| Tetrachloroethylene | MR | 16 | 2023 |
| Styrene | MR | 16 | 2023 |
| Ethylbenzene | MR | 16 | 2023 |
| 1,2-Dichloropropane | MR | 16 | 2023 |
| cis-1,2-Dichloroethylene | MR | 16 | 2023 |
| trans-1,2-Dichloroethylene | MR | 16 | 2023 |
| o-Dichlorobenzene | MR | 16 | 2023 |
| 1,1,2-Trichloroethane | MR | 14 | 2023 |
| DICHLOROMETHANE | MR | 14 | 2023 |
| 1,2,4-Trichlorobenzene | MR | 14 | 2023 |
| Arsenic | MR | 13 | 2004 |
| Vinyl chloride | MR | 13 | 2023 |
| TTHM | MR | 13 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 13 | 2025 |
| Endrin | MR | 11 | 2010 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.