ROCK LAKE CITY OF
PWS ID: ND4800828 · ROCK LAKE, North Dakota 58365
Population Served
94
Total Violations
82
Health-Based Violations
2
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 107
- County
- Towner
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 46
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 27 | 2011 |
| Public Notice | Other | 22 | 2009 |
| Chlorine | MR | 18 | 2024 |
| Consumer Confidence Rule | Other | 7 | 2011 |
| Coliform (TCR) | MCL | 2 | 2004 |
| Lead and Copper Rule | MR | 1 | 2012 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.