Tap water in Hempstead (T), NY — ZIP 11756
3 public water systems serving about 278,000 people. PFAS "forever chemicals" have been detected here.
F
Failing
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 11756
Liberty Utilities New York - Merrick
PWSID NY2902840 · serves 135,000 ·
groundwater
3 health-based / 3 total violations (5 yrs)
Town Of Hempstead Water Department
PWSID NY2900000 · serves 110,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 4.2 ppt
Bethpage Wd
PWSID NY2902817 · serves 33,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 9.3 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology