Tap water in Wilmington, DE — ZIP 19720
4 public water systems serving about 445,134 people. PFAS "forever chemicals" have been detected here.
D
Poor
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 19720
Artesian Water Company
PWSID DE0000552 · serves 231,114 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 106 ppt — above federal limit
Wilmington Water Department
PWSID DE0000663 · serves 107,976 ·
surface water
0 health-based / 1 total violations (5 yrs)
· PFAS up to 32.2 ppt — above federal limit
Veolia Water Delaware, Inc
PWSID DE0000564 · serves 100,495 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 40.6 ppt — above federal limit
Municipal Services Commission
PWSID DE0000634 · serves 5,549 ·
groundwater
0 health-based / 0 total violations (5 yrs)
· PFAS up to 147.2 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology