AQUARION-LAKESIDE
PWS ID: CT1300031 · SHELTON, Connecticut 06484
Population Served
455
Total Violations
165
Health-Based Violations
21
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 201
- County
- New Haven
- School/Daycare
- No
- MCL Violations
- 21
- Monitoring Violations
- 91
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 26 | 1997 |
| Coliform (TCR) | MCL | 16 | 1995 |
| Combined Radium (-226 and -228) | MCL | 5 | 1994 |
| Beryllium, Total | MR | 5 | 1991 |
| Nickel | MR | 5 | 1991 |
| Chromium | MR | 5 | 1991 |
| Arsenic | MR | 5 | 1991 |
| CYANIDE | MR | 5 | 1991 |
| Mercury | MR | 5 | 1991 |
| Lead and Copper Rule | MR | 5 | 2021 |
| Selenium | MR | 5 | 1991 |
| Barium | MR | 5 | 1991 |
| Fluoride | MR | 5 | 1991 |
| Cadmium | MR | 5 | 1991 |
| Thallium, Total | MR | 5 | 1991 |
| Antimony, Total | MR | 5 | 1991 |
| Coliform (TCR) | Other | 4 | 1995 |
| Consumer Confidence Rule | Other | 4 | 2018 |
| Barium | Other | 3 | 1994 |
| Cadmium | Other | 3 | 1994 |
| Chromium | Other | 3 | 1994 |
| Fluoride | Other | 3 | 1994 |
| Selenium | Other | 3 | 1994 |
| Silver | Other | 3 | 1994 |
| CYANIDE | Other | 3 | 1994 |
| Nickel | Other | 3 | 1994 |
| Antimony, Total | Other | 3 | 1994 |
| Beryllium, Total | Other | 3 | 1994 |
| Sulfate | Other | 3 | 1994 |
| Mercury | Other | 3 | 1994 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.