Population Served
59.6K
Service Connections
12.0K
Total Violations
66
Health-Based Violations
30
Lead & Copper Data
Lead Level
Caution4.50 ppb
Action Level: 15 ppb (EPA) · Sampled: 2026-12-31
015 ppb action level
Copper Level
1630 ppb
Action Level: 1,300 ppb (EPA) · Sampled: 1992-12-31
Copper action level exceeded
System Details
- Water Source
- Surface Water
- System Type
- Community Water System
- City
- MAMARONECK
- ZIP Code
- 10543
- Counties Served
- Westchester
- Cities Served
- Mamaroneck
- Open Violations
- 0
- State
- New York
Violation Summary
66
Total Violations
30
Health-Based
0
Open Now
Most recent violation: 2019-07-01
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Data source: EPA ECHO SDWIS Bulk Download (Jan 2026). PWSID: NY5903435.SafeWater Home