PFAS Analyte · UCMR 5
PFOA
Perfluorooctanoic acid
Detection Rate — PFOA
1,238 of 1,238 monitored systems
4,155 detections across 4,155 total samples
States with Most PFOA Detections
Water Systems with Most PFOA Detections
Systems ranked by number of samples detected above the minimum reporting limit. Detection count reflects monitoring frequency, not concentration level.
Veolia Water New York
NY4303673 · NY · 270,000 served
City of Fresno
CA1010007 · CA · 545,716 served
Aqua Pa Main System
PA1460073 · PA · 822,600 served
Ridgewood Water
NJ0251001 · NJ · 61,700 served
Brookwood Comm Wtr System
NC0326127 · NC · 15,380 served
Northampton Bucks Co Mun Auth
PA1090089 · PA · 36,750 served
Parsippany-troy Hills Water Department
NJ1429001 · NJ · 50,400 served
Cliffdale West
NC0326332 · NC · 15,220 served
Emerald Coast Utilities Authority (ecua)
FL1170525 · FL · 242,172 served
Town of Payson
AZ0404032 · AZ · 17,682 served
Livingston Twp Div of Water
NJ0710001 · NJ · 27,391 served
Suffolk County Water Authority
NY5110526 · NY · 1,100,000 served
Woodbury
MN1820025 · MN · 82,643 served
Nj American Water - Coastal North
NJ1345001 · NJ · 377,613 served
Bayleaf Master
NC0392373 · NC · 16,715 served
All records are from official EPA UCMR 5 monitoring data. Detection counts reflect the number of samples where the analyte was reported above the minimum reporting limit (MRL). They are not compliance determinations and do not imply a health violation. The EPA MCL for PFOA is 4 ppt under the PFAS National Primary Drinking Water Regulation (April 2024).
PFOA at a Glance
Note
Individual MCL of 4 ppt finalized April 2024.