PFAS Analyte · UCMR 5
HFPO-DA
Hexafluoropropylene oxide dimer acid
Detection Rate — HFPO-DA
45 of 45 monitored systems
112 detections across 112 total samples
States with Most HFPO-DA Detections
Water Systems with Most HFPO-DA Detections
Systems ranked by number of samples detected above the minimum reporting limit. Detection count reflects monitoring frequency, not concentration level.
West Columbia City of (3210004)
SC3210004 · SC · 34,028 served
Donalds-due West W&sa (sc0120001)
SC0120001 · SC · 5,200 served
Honea Path Town of (sc0410003)
SC0410003 · SC · 4,386 served
Laurens County W&s Comm (sc3020001)
SC3020001 · SC · 44,866 served
Columbia City of (sc4010001)
SC4010001 · SC · 319,500 served
Newberry Co W&sa (sc3620002)
SC3620002 · SC · 11,157 served
Saluda Co W&s Authority (4120001)
SC4120001 · SC · 4,535 served
Ware Shoals Town of (sc2410003)
SC2410003 · SC · 3,174 served
Lexington Town of (3210001)
SC3210001 · SC · 24,284 served
Newberry City of (3610001)
SC3610001 · SC · 9,947 served
Amicks Ferry Wtr System (sc3250077)
SC3250077 · SC · 3,937 served
Joint Municipal Wsc (sc3220003)
SC3220003 · SC · 47,838 served
Perth Amboy Water Department
NJ1216001 · NJ · 52,328 served
Abbeville City of (sc0110001)
SC0110001 · SC · 5,650 served
Ironton
OH4400711 · OH · 11,129 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 HFPO-DA is 10 ppt under the PFAS National Primary Drinking Water Regulation (April 2024).
HFPO-DA at a Glance
Note
Individual MCL of 10 ppt finalized April 2024. Also known as GenX chemicals.