NSBU - ATQASUK
PWS ID: AK2320094 · ANCHORAGE, Alaska 99518
Population Served
284
Total Violations
357
Health-Based Violations
51
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 72
- County
- North Slope Borough
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 239
- Treatment Tech Violations
- 51
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 124 | 2024 |
| Surface Water Treatment Rule | TT | 51 | 1998 |
| Coliform (TCR) | MR | 19 | 2011 |
| Chlorine | MR | 11 | 2024 |
| Consumer Confidence Rule | Other | 6 | 2019 |
| Fluoride | MR | 5 | 1990 |
| Nitrate | MR | 4 | 2000 |
| DICHLOROMETHANE | MR | 3 | 2000 |
| 1,1,1-Trichloroethane | MR | 3 | 2000 |
| Xylenes, Total | MR | 3 | 2000 |
| CHLOROBENZENE | MR | 3 | 2000 |
| Toluene | MR | 3 | 2000 |
| Ethylbenzene | MR | 3 | 2000 |
| 1,2-Dichloropropane | MR | 3 | 2000 |
| cis-1,2-Dichloroethylene | MR | 3 | 2000 |
| trans-1,2-Dichloroethylene | MR | 3 | 2000 |
| 1,1-Dichloroethylene | MR | 3 | 2000 |
| Trichloroethylene | MR | 3 | 2000 |
| 1,2-Dichloroethane | MR | 3 | 2000 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2000 |
| 1,1,2-Trichloroethane | MR | 3 | 2000 |
| Tetrachloroethylene | MR | 3 | 2000 |
| Styrene | MR | 3 | 2000 |
| Benzene | MR | 3 | 2000 |
| Lead and Copper Rule | MR | 3 | 1997 |
| p-Dichlorobenzene | MR | 3 | 2000 |
| o-Dichlorobenzene | MR | 3 | 2000 |
| Carbon tetrachloride | MR | 3 | 2000 |
| Long Term 2 Enhanced Surface Water Treatment Rule | MR | 1 | 2008 |
| Arsenic | MR | 1 | 1989 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.