Population Served
1.1M
Service Connections
336.4K
Total Violations
42
Health-Based Violations
14
Lead & Copper Data
Lead Level
Caution1.27 ppb
Action Level: 15 ppb (EPA) · Sampled: 2025-12-31
015 ppb action level
Copper Level
No copper sampling data available
System Details
- Water Source
- Groundwater
- System Type
- Community Water System
- City
- HAUPPAUGE
- ZIP Code
- 11788
- Counties Served
- Suffolk
- Cities Served
- RIVERHEAD (T), EAST HAMPTON (T), BROOKHAVEN (T), ISLIP (T), SOUTHAMPTON (T), HUNTINGTON (T), BABYLON (T), SOUTHOLD (T) + 1 more
- Open Violations
- 0
- State
- New York
Violation Summary
42
Total Violations
14
Health-Based
0
Open Now
Most recent violation: 2020-07-01
Explore New York Water Quality
See all water systems, lead data, and violation trends for New York.
Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: NY5110526.SafeWater Home