PFAS in Delaware Water
Based on EPA UCMR 5 testing of 25 public water systems in Delaware.
25
Systems Tested
25
With PFAS Detected
14
Above EPA Limits
56%
Exceed MCL
Most Commonly Detected PFAS in Delaware
Systems with detections · EPA UCMR 5 (2023–2025)
PFPeA 14 systems
PFHxA 13 systems
PFOA 12 systems
PFBS 11 systems
PFOS 9 systems
lithium 8 systems
Check your Delaware ZIP code
Get specific results for your neighborhood's water utility.
Water Systems in Delaware (25)
Click any row to see ZIP-level details| Water System | PWSID | PFAS Detected | Above MCL | Risk |
|---|---|---|---|---|
| GEORGETOWN WATER DEPARTMENT Groundwater | DE0000592 | 11 | 3 | High Risk |
| SUEZ WATER DELAWARE Surface Water | DE0000564 | 9 | 2 | High Risk |
| ARTESIAN WATER COMPANY Groundwater | DE0000552 | 8 | 2 | High Risk |
| NEWARK WATER DEPARTMENT, DE Groundwater | DE0000630 | 8 | 2 | High Risk |
| REHOBOTH BEACH WATER DEPARTMENT Groundwater | DE0000723 | 7 | 2 | High Risk |
| STAGE VILLAGE MHC Groundwater | DE0000569 | 5 | 2 | High Risk |
| SMYRNA WATER DEPARTMENT Groundwater | DE0000657 | 5 | 2 | High Risk |
| LEWES BOARD OF PUBLIC WORKS Groundwater | DE0000602 | 3 | 2 | High Risk |
| WILMINGTON WATER DEPARTMENT Surface Water | DE0000663 | 6 | 1 | High Risk |
| DEWEY BEACH WATER DEPARTMENT Groundwater | DE0000825 | 5 | 1 | High Risk |
| REHOBOTH PUMP DISTRICT Groundwater | DE0000991 | 4 | 1 | High Risk |
| ARTESIAN NORTHERN SUSSEX REGIONAL Groundwater | DE0020003 | 4 | 1 | High Risk |
| BETHANY BAY PUMP DISTRICT Groundwater | DE0000221 | 1 | 1 | High Risk |
| SOUTH BETHANY Groundwater | DE00A0323 | 1 | 1 | High Risk |
| BAYSIDE PUMP DISTRICT Groundwater | DE00A0837 | 3 | 0 | Low Level |
| SEAFORD WATER DEPARTMENT Groundwater | DE0000246 | 2 | 0 | Low Level |
| MUNICIPAL SERVICES COMMISSION Groundwater | DE0000634 | 2 | 0 | Low Level |
| GARRISON LAKE PUMP DISTRICT Groundwater | DE0000004 | 1 | 0 | Low Level |
| CAMDEN PUMP DISTRICT Groundwater | DE0000124 | 1 | 0 | Low Level |
| BRIDGEVILLE WATER DEPARTMENT Groundwater | DE0000559 | 1 | 0 | Low Level |
| CAMDEN WYOMING SEWER AND WATER AUTHORITY Groundwater | DE0000563 | 1 | 0 | Low Level |
| DOVER WATER DEPARTMENT Groundwater | DE0000571 | 1 | 0 | Low Level |
| DOVER AIR FORCE BASE Groundwater | DE0000579 | 1 | 0 | Low Level |
| MILFORD WATER DEPARTMENT Groundwater | DE0000616 | 1 | 0 | Low Level |
| CHURCH CREEK Groundwater | DE00A0428 | 1 | 0 | Low Level |