COECLES HARBOR MARINA
PWS ID: NY5101566 · SHELTER ISLAND, New York 11964
Population Served
150
Total Violations
6
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Transient Non-Community
- Owner Type
- Private
- Connections
- 50
- County
- Suffolk
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 3
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 3 | 2016 |
| Coliform (TCR) | MCL | 3 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.