SUFFOLK COUNTY WATER AUTHORITY
Hauppauge, NY · 1,100,000 served
SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people in Hauppauge, NY. It has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
80/100
Violation history (last 5 years)
No violations on record.
Get alerted when SUFFOLK COUNTY WATER AUTHORITY gets a violation
We'll only email you about this water system. Unsubscribe anytime.
Lead (Lead and Copper Rule)
EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).
PFAS (UCMR5 occurrence data)
System details
- System type
- Community water system
- Water source
- Ground water
- Ownership
- Local government
- Service connections
- 336,418
Worried about what's in your tap?
See which water filters are certified to remove the contaminants found in your area.
Find a filter that matches your waterFrequently asked questions
Is Hauppauge, NY tap water safe to drink?
SUFFOLK COUNTY WATER AUTHORITY has 0 health-based violations in the last 5 years. TapGraded gives this system a B.
Does SUFFOLK COUNTY WATER AUTHORITY have lead in its water?
The most recent 90th-percentile lead sample is 1.3 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in SUFFOLK COUNTY WATER AUTHORITY's water?
Yes — PFAS was detected at or above the EPA MCL for 3 of the tracked analytes.
Source: EPA SDWIS/ECHO · Data as of 2026Q2