Tap water in Oyster Bay (T), NY — ZIP 11735
4 public water systems serving about 1,186,444 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 11735
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
South Farmingdale Wd
PWSID NY2902854 · serves 44,700 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Bethpage Wd
PWSID NY2902817 · serves 33,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 9.3 ppt
Farmingdale (V)
PWSID NY2902821 · serves 8,744 ·
groundwater
0 health-based / 0 total violations (5 yrs)
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology