ROUND HILL LLC - WELL# 1&2
PWS ID: CT0731021 · GRISWOLD, Connecticut 06351
Population Served
72
Total Violations
226
Health-Based Violations
12
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 12
- County
- New London
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 169
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 28 | 2025 |
| Lead and Copper Rule | MR | 23 | 2025 |
| Revised Total Coliform Rule | MON | 13 | 2025 |
| Coliform (TCR) | MCL | 11 | 2009 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 1998 |
| Public Notice | Other | 8 | 2018 |
| E. COLI | MR | 8 | 2017 |
| ETHYLENE DIBROMIDE | MR | 6 | 1995 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 6 | 1995 |
| o-Dichlorobenzene | MR | 4 | 1990 |
| 1,1,2-Trichloroethane | MR | 4 | 1990 |
| Toluene | MR | 4 | 1990 |
| Ethylbenzene | MR | 4 | 1990 |
| Styrene | MR | 4 | 1990 |
| p-Dichlorobenzene | MR | 4 | 1990 |
| Vinyl chloride | MR | 4 | 1990 |
| 1,1-Dichloroethylene | MR | 4 | 1990 |
| 1,2-Dichloroethane | MR | 4 | 1990 |
| 1,1,1-Trichloroethane | MR | 4 | 1990 |
| Carbon tetrachloride | MR | 4 | 1990 |
| Trichloroethylene | MR | 4 | 1990 |
| Benzene | MR | 4 | 1990 |
| cis-1,2-Dichloroethylene | MR | 4 | 1990 |
| DICHLOROMETHANE | MR | 4 | 1990 |
| CHLOROBENZENE | MR | 4 | 1990 |
| 1,2-Dichloropropane | MR | 4 | 1990 |
| Tetrachloroethylene | MR | 4 | 1990 |
| trans-1,2-Dichloroethylene | MR | 4 | 1990 |
| Coliform (TCR) | MR | 3 | 1997 |
| 2,4-D | MR | 2 | 1995 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.