THAYER
PWS ID: IL1671250 · THAYER, Illinois 62689
Population Served
721
Total Violations
93
Health-Based Violations
23
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 364
- County
- Sangamon
- School/Daycare
- No
- MCL Violations
- 18
- Monitoring Violations
- 45
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Atrazine | MCL | 18 | 1994 |
| Coliform (TCR) | MR | 13 | 2013 |
| Lead and Copper Rule | MR | 12 | 2023 |
| Consumer Confidence Rule | Other | 8 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2019 |
| Chloramine | MR | 6 | 2013 |
| TTHM | MR | 6 | 2019 |
| Interim Enhanced Surface Water Treatment Rule | TT | 5 | 2010 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.