CheckPFAS

PFAS in Pennsylvania Water

Based on EPA UCMR 5 testing of 225 public water systems in Pennsylvania.

225
Systems Tested
225
With PFAS Detected
119
Above EPA Limits
53%
Exceed MCL

Most Commonly Detected PFAS in Pennsylvania

Systems with detections · EPA UCMR 5 (2023–2025)

PFPeA 128 systems
PFBS 121 systems
lithium 117 systems
PFHxA 111 systems
PFOA 102 systems
PFOS 97 systems

Check your Pennsylvania ZIP code

Get specific results for your neighborhood's water utility.

Water Systems in Pennsylvania (225)

Click any row to see ZIP-level details
Water System PWSID PFAS Detected Above MCL Risk
EMMAUS BOROUGH PUBLIC WATER
Groundwater
PA3390032 13 4
High Risk
PALMERTON MUNICIPAL AUTHORITY
Groundwater
PA3130012 8 4
High Risk
AMBLER BORO WATER DEPT
Groundwater
PA1460020 11 3
High Risk
AQUA PA MAIN SYSTEM
Surface Water
PA1460073 10 3
High Risk
QUAKERTOWN BORO
Groundwater
PA1090082 9 3
High Risk
HORSHAM WATER&SEWER AUTHORITY
Surface Water
PA1460033 9 3
High Risk
PAW PENN DISTRICT
Groundwater
PA3060069 9 3
High Risk
BEAVER BORO MUNI AUTH
Groundwater
PA5040009 9 3
High Risk
CORAOPOLIS WATER & SEWER AUTH
Surface Water
PA5020010 7 3
High Risk
LEHMAN JACKSON ELEMENTARY
Groundwater
PA2400370 4 3
High Risk
DOYLESTOWN BORO WATER DEPT
Groundwater
PA1090081 10 2
High Risk
NORTHAMPTON BUCKS CO MUN AUTH
Groundwater
PA1090089 10 2
High Risk
NORTH WALES WATER AUTHORITY
Groundwater
PA1460048 10 2
High Risk
TELFORD BOROUGH AUTHORITY
Surface Water
PA1460050 10 2
High Risk
AUDUBON WATER COMPANY
Groundwater
PA1460055 10 2
High Risk
MUHLENBERG TWP MUNI AUTH
Groundwater
PA3060038 10 2
High Risk
AQUA PA CHALFONT
Groundwater
PA1090005 9 2
High Risk
DTMA MAIN SYSTEM
Groundwater
PA1090128 9 2
High Risk
AQUA PA SPRING RUN
Surface Water
PA1150089 9 2
High Risk
PA AMERICAN ROYERSFORD
Groundwater
PA1150166 9 2
High Risk