WILLIAMSBURG PUBLIC WATER SUPPLY
PWS ID: IA4884023 · WILLIAMSBURG, Iowa 52361
Population Served
3,345
Total Violations
78
Health-Based Violations
11
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,332
- County
- Iowa
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 45
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrite | MR | 18 | 2017 |
| Nitrite | MCL | 11 | 2012 |
| Gross Alpha, Excl. Radon and U | MR | 6 | 1989 |
| Lead and Copper Rule | MR | 5 | 2018 |
| Nitrate | MR | 4 | 2017 |
| TTHM | MR | 4 | 2013 |
| Coliform (TCR) | MR | 4 | 2009 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2013 |
| Groundwater Rule | Other | 3 | 2023 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.