Tap water in Rehoboth Beach, DE — ZIP 19971
3 public water systems serving about 137,417 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 19971
Rehoboth Pump District (Tui)
PWSID DE0000991 · serves 81,417 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 9.4 ppt — above federal limit
Dewey Beach Water Department
PWSID DE0000825 · serves 31,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 11 ppt — above federal limit
Rehoboth Beach Water Department
PWSID DE0000723 · serves 25,000 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 14.9 ppt — above federal limit
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology