ZIP Code 19040
High RiskPFAS above EPA limits detected
8 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.
27
PFAS Detected
8
Above EPA Limits
3
Water Systems
845%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 538% of limit
Detected: 21.50 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 405% of limit
Detected: 16.20 ppt
PFHxS Exceeds EPA limit
0 ppt MCL: 10 ppt 106% of limit
Detected: 10.60 ppt
PFNA Exceeds EPA limit
0 ppt MCL: 10 ppt 120% of limit
Detected: 12.00 ppt
AQUA PA HATBORO
PA1460028 High RiskWater Type
MX
PFAS Detected
8
Above MCL
2
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 21.50ppt | 538% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 16.20ppt | 405% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 6.20ppt | 62% of limit
| 10 ppt | Below limit |
PFPeA Perfluoropentanoic acid | 16.10ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 11.80ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 11.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.20ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 5.70ppt | No federal limit | — | Unregulated |
HORSHAM WATER&SEWER AUTHORITY
PA1460033 High RiskWater Type
Surface Water
PFAS Detected
9
Above MCL
3
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 33.80ppt | 845% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 17.50ppt | 438% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 10.60ppt | 106% of limit
| 10 ppt | ⚠ Exceeds MCL |
lithium | 13900.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 65.30ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 41.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.10ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.70ppt | No federal limit | — | Unregulated |
Show 1 more compound detected at low levels
| PFHpAPerfluoroheptanoic acid | 4.40 ppt | No federal limit |
AQUA PA MAIN SYSTEM
PA1460073 High RiskWater Type
Surface Water
PFAS Detected
10
Above MCL
3
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 12.60ppt | 315% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 9.20ppt | 230% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFNA Perfluorononanoic acid | 12.00ppt | 120% of limit
| 10 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 7.70ppt | 77% of limit
| 10 ppt | Below limit |
lithium | 15700.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 21.80ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 17.20ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 10.10ppt | No federal limit | — | Unregulated |
Show 2 more compounds detected at low levels
| PFBSPerfluorobutane sulfonic acid | 9.50 ppt | No federal limit |
| PFHpAPerfluoroheptanoic acid | 6.90 ppt | No federal limit |
Note: ZIP code 19040 is served by 3 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.