986 KILLINGWORTH RD PLAZA
PWS ID: CT0610484 · MADISON, Connecticut 06443
Population Served
25
Total Violations
59
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Middlesex
- School/Daycare
- No
- MCL Violations
- 8
- Monitoring Violations
- 33
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2012 |
| Public Notice | Other | 12 | 2023 |
| Revised Total Coliform Rule | MON | 12 | 2022 |
| Revised Total Coliform Rule | TT | 4 | 2024 |
| Revised Total Coliform Rule | MCL | 4 | 2024 |
| Coliform (TCR) | MCL | 4 | 2010 |
| Nitrate | MR | 2 | 2003 |
| Nitrite | MR | 2 | 2003 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.