AQUARION-ROLLING RIDGE
PWS ID: CT0340271 · SHELTON, Connecticut 06484
Population Served
115
Total Violations
201
Health-Based Violations
22
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 43
- County
- Fairfield
- School/Daycare
- No
- MCL Violations
- 17
- Monitoring Violations
- 166
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 17 | 1999 |
| Coliform (TCR) | MR | 15 | 2010 |
| Chlorine | MR | 6 | 2010 |
| Surface Water Treatment Rule | MR | 6 | 2010 |
| Consumer Confidence Rule | Other | 6 | 2018 |
| TTHM | MR | 6 | 2005 |
| Lead and Copper Rule | TT | 5 | 1995 |
| 1,2-Dichloropropane | MR | 4 | 1993 |
| Carbon tetrachloride | MR | 4 | 1993 |
| 1,2-Dichloroethane | MR | 4 | 1993 |
| trans-1,2-Dichloroethylene | MR | 4 | 1993 |
| 1,1-Dichloroethylene | MR | 4 | 1993 |
| DICHLOROMETHANE | MR | 4 | 1993 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 1993 |
| Beryllium, Total | MR | 4 | 1991 |
| Antimony, Total | MR | 4 | 1991 |
| Nickel | MR | 4 | 1991 |
| Fluoride | MR | 4 | 1991 |
| CYANIDE | MR | 4 | 1991 |
| Cadmium | MR | 4 | 1991 |
| Barium | MR | 4 | 1991 |
| Ethylbenzene | MR | 4 | 1993 |
| Benzene | MR | 4 | 1993 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2004 |
| CHLOROBENZENE | MR | 4 | 1993 |
| Trichloroethylene | MR | 4 | 1993 |
| Thallium, Total | MR | 4 | 1991 |
| Mercury | MR | 4 | 1991 |
| Arsenic | MR | 4 | 1991 |
| 1,1,2-Trichloroethane | MR | 4 | 1993 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.