💧 ZIP Water Report

Tap water in Smithtown (T), NY — ZIP 11754

2 public water systems serving about 1,119,635 people. PFAS "forever chemicals" have been detected here.

C
Fair
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5 testing. Levels and the 2024 federal limits are shown per system below.

Water systems serving 11754

Suffolk County Water Authority
PWSID NY5110526 · serves 1,100,000 · groundwater
0 health-based / 0 total violations (5 yrs) · PFAS up to 43.5 ppt — above federal limit
C
Smithtown Water District
PWSID NY5105656 · serves 19,635 · groundwater
0 health-based / 0 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology