SWAN ISLAND WMA
PWS ID: ME0094759 · SIDNEY, Maine 04330
Population Served
43
Total Violations
78
Health-Based Violations
22
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Sagadahoc
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 34
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 17 | 2023 |
| Public Notice | Other | 11 | 2024 |
| Revised Total Coliform Rule | RPT | 11 | 2023 |
| Revised Total Coliform Rule | TT | 9 | 2025 |
| Coliform (TCR) | MR | 8 | 2014 |
| Coliform (TCR) | MCL | 8 | 2015 |
| Revised Total Coliform Rule | MCL | 5 | 2023 |
| E. COLI | MR | 5 | 2021 |
| Nitrate | MR | 4 | 2024 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.