ZIP Code 19426
High RiskPFAS above EPA limits detected
7 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.
35
PFAS Detected
7
Above EPA Limits
5
Water Systems
5875%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 268% of limit
Detected: 10.70 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 228% of limit
Detected: 9.10 ppt
PA AMERICAN ROYERSFORD
PA1150166 High RiskWater Type
Groundwater
PFAS Detected
9
Above MCL
2
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 10.70ppt | 268% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 9.10ppt | 228% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.00ppt | 50% of limit
| 10 ppt | Below limit |
lithium | 45200.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 7.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.20ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.70ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.40ppt | No federal limit | — | Unregulated |
Show 1 more compound detected at low levels
| PFHpAPerfluoroheptanoic acid | 3.40 ppt | No federal limit |
COLLEGEVILLE TRAPPE JOINT PWD
PA1460022 High RiskWater Type
Groundwater
PFAS Detected
9
Above MCL
2
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 235.00ppt | 5875% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 15.00ppt | 375% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 4.20ppt | 42% of limit
| 10 ppt | Below limit |
lithium | 37000.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 15.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 10.90ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 8.40ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.60ppt | No federal limit | — | Unregulated |
Show 1 more compound detected at low levels
| PFHpAPerfluoroheptanoic acid | 6.20 ppt | No federal limit |
NORTH PENN WATER AUTHORITY
PA1460034 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
1
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 5.10ppt | 128% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 23600.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 3.40ppt | No federal limit | — | Unregulated |
PA AMERICAN NORRISTOWN
PA1460046 ModerateWater Type
Surface Water
PFAS Detected
5
Above MCL
0
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 16200.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.00ppt | No federal limit | — | Unregulated |
AQUA PA PERKIOMEN TOWNSHIP
PA1460069 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
2
State
Pennsylvania
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 10.80ppt | 270% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 7.40ppt | 185% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 37700.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 13.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.90ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 6.50ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.10ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 4.70ppt | No federal limit | — | Unregulated |
Note: ZIP code 19426 is served by 5 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.