ZIP Code 19947
High RiskPFAS above EPA limits detected
4 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.
15
PFAS Detected
4
Above EPA Limits
2
Water Systems
900%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 900% of limit
Detected: 36.00 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 350% of limit
Detected: 14.00 ppt
PFNA Exceeds EPA limit
0 ppt MCL: 10 ppt 200% of limit
Detected: 20.00 ppt
GEORGETOWN WATER DEPARTMENT
DE0000592 High RiskWater Type
Groundwater
PFAS Detected
11
Above MCL
3
State
Delaware
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 36.00ppt | 900% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 14.00ppt | 350% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFNA Perfluorononanoic acid | 20.00ppt | 200% of limit
| 10 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.10ppt | 51% of limit
| 10 ppt | Below limit |
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 180.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 110.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 68.00ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 39.00ppt | No federal limit | — | Unregulated |
Show 3 more compounds detected at low levels
| 8:2 FTS8:2 Fluorotelomer sulfonic acid | 30.00 ppt | No federal limit |
| PFBAPerfluorobutanoic acid | 24.00 ppt | No federal limit |
| PFBSPerfluorobutane sulfonic acid | 7.50 ppt | No federal limit |
ARTESIAN NORTHERN SUSSEX REGIONAL
DE0020003 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
1
State
Delaware
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 5.70ppt | 143% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFPeA Perfluoropentanoic acid | 8.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.30ppt | No federal limit | — | Unregulated |
Note: ZIP code 19947 is served by 2 separate water utilities.
Results above show data for each system independently.
Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.
UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.
Detection values represent the highest single-sample result measured at entry points to the distribution system.