KASAAN
PWS ID: AK2120606 · KASAAN, Alaska 99950
Population Served
46
Total Violations
596
Health-Based Violations
94
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 39
- County
- Ketchikan Gateway Borough
- School/Daycare
- No
- MCL Violations
- 50
- Monitoring Violations
- 373
- Treatment Tech Violations
- 44
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 106 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | MR | 56 | 2022 |
| Surface Water Treatment Rule | TT | 44 | 2017 |
| Total Haloacetic Acids (HAA5) | MCL | 36 | 2019 |
| Coliform (TCR) | MR | 24 | 2015 |
| Chlorine | MR | 23 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 20 | 2021 |
| Consumer Confidence Rule | Other | 16 | 2021 |
| TTHM | MR | 16 | 2021 |
| TTHM | MCL | 14 | 2018 |
| Revised Total Coliform Rule | MON | 14 | 2024 |
| Lead and Copper Rule | MR | 8 | 2019 |
| Nitrate | MR | 6 | 2013 |
| Fluoride | MR | 5 | 1992 |
| Arsenic | MR | 5 | 2011 |
| E. COLI | MR | 4 | 2018 |
| Cadmium | MR | 3 | 1992 |
| Mercury | MR | 3 | 1992 |
| Barium | MR | 3 | 1992 |
| Selenium | MR | 3 | 1992 |
| Chromium | MR | 3 | 1992 |
| 1,2,4-Trichlorobenzene | MR | 3 | 2014 |
| Xylenes, Total | MR | 3 | 2014 |
| trans-1,2-Dichloroethylene | MR | 3 | 2014 |
| p-Dichlorobenzene | MR | 3 | 2014 |
| 1,1,1-Trichloroethane | MR | 3 | 2014 |
| Carbon tetrachloride | MR | 3 | 2014 |
| 1,2-Dichloropropane | MR | 3 | 2014 |
| Trichloroethylene | MR | 3 | 2014 |
| 1,1,2-Trichloroethane | MR | 3 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.