JANESVILLE WATER SUPPLY
PWS ID: IA0932001 · JANESVILLE, Iowa 50647-0146
Population Served
1,034
Total Violations
67
Health-Based Violations
7
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 483
- County
- Bremer
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 25
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 12 | 2010 |
| Nitrate | MCL | 7 | 1996 |
| Coliform (TCR) | MR | 4 | 2010 |
| Arsenic | MR | 3 | 2002 |
| Combined Radium (-226 and -228) | MR | 3 | 2000 |
| Gross Alpha, Excl. Radon and U | MR | 3 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.