DENALI - ROCK CREEK HQ.
PWS ID: AK2390586 · DENALI PARK, Alaska 99755
Population Served
300
Total Violations
130
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Federal
- Connections
- 61
- County
- Denali Borough
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 90
- Treatment Tech Violations
- 2
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 8 | 2025 |
| Benzene | MR | 6 | 2023 |
| 1,1-Dichloroethylene | MR | 6 | 2023 |
| 1,2-Dichloroethane | MR | 6 | 2023 |
| p-Dichlorobenzene | MR | 6 | 2023 |
| Carbon tetrachloride | MR | 6 | 2023 |
| Trichloroethylene | MR | 6 | 2023 |
| 1,1,1-Trichloroethane | MR | 6 | 2023 |
| Vinyl chloride | MR | 6 | 2023 |
| Revised Total Coliform Rule | MON | 5 | 2025 |
| Consumer Confidence Rule | Other | 4 | 2009 |
| Groundwater Rule | TT | 2 | 2022 |
| Coliform (TCR) | MR | 1 | 2000 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1986 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2023 |
| cis-1,2-Dichloroethylene | MR | 1 | 2023 |
| Xylenes, Total | MR | 1 | 2023 |
| DICHLOROMETHANE | MR | 1 | 2023 |
| o-Dichlorobenzene | MR | 1 | 2023 |
| 1,2-Dichloropropane | MR | 1 | 2023 |
| 1,1,2-Trichloroethane | MR | 1 | 2023 |
| Toluene | MR | 1 | 2023 |
| Ethylbenzene | MR | 1 | 2023 |
| Mercury | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Endrin | MR | 1 | 1979 |
| 2,4-D | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
| trans-1,2-Dichloroethylene | MR | 1 | 2023 |
| 2,4,5-TP | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.