STONINGTON INSTITUTE - KNOLLWOOD
PWS ID: CT1020483 · NORTH STONINGTON, Connecticut 06359
Population Served
77
Total Violations
39
Health-Based Violations
28
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- New London
- School/Daycare
- No
- MCL Violations
- 28
- Monitoring Violations
- 10
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 28 | 2013 |
| Lead and Copper Rule | MR | 3 | 2002 |
| Coliform (TCR) | MR | 3 | 2002 |
| Nitrate | MR | 2 | 2024 |
| Nitrite | MR | 2 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.