Hfpo-Da in Drinking Water — EPA Limit & Where It's Found

What the EPA limit means

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No federal limit

The EPA has not set an enforceable numeric limit for this contaminant.

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Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.

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UCMR-5

Where these measurements come from. Hover the tag for the EPA programme and years.

Where Hfpo-Da was found

The water suppliers reporting the highest levels, worst first. For lead and copper that is the 90th-percentile result the action level is written against; for Six-Year Review data, the 95th percentile of each system's samples.

Supplier	City	State	Level vs EPA limit
Abbeville City of (sc0110001)	Abbeville	SC	0.1400 µg/L No EPA limit set
Laurens County W&S Comm (sc3020001)	Laurens	SC	0.0958 µg/L No EPA limit set
Greenwood Cpw (2410001)	Greenwood	SC	0.0910 µg/L No EPA limit set
Belton City of (sc0410004)	Belton	SC	0.0829 µg/L No EPA limit set
Honea Path Town of (sc0410003)	Honea Path	SC	0.0420 µg/L No EPA limit set
Donalds-Due West W&Sa (sc0120001)	Donalds	SC	0.0400 µg/L No EPA limit set
Saluda Cpw (sc4110001)	Saluda	SC	0.0390 µg/L No EPA limit set
Robeson County Water System	Maxton	NC	0.0340 µg/L No EPA limit set
Big Sandy Water District	Catlettsburg	KY	0.0250 µg/L No EPA limit set
Ware Shoals Town of (sc2410003)	Ware Shoals	SC	0.0220 µg/L No EPA limit set
Clinton City of (sc3010002)	Clinton	SC	0.0143 µg/L No EPA limit set
Perth Amboy Water Department	Perth Amboy city--1216	NJ	0.0140 µg/L No EPA limit set
Bladen Co Wtr Dist-East Bladen	White Lake	NC	0.0136 µg/L No EPA limit set
Milltown W Dept	North Brunswick twp.-1215	NJ	0.0129 µg/L No EPA limit set
Newberry City of (3610001)	Newberry	SC	0.0102 µg/L No EPA limit set
Joint Municipal Wsc (sc3220003)	Lexington	SC	0.0101 µg/L No EPA limit set
West Columbia City of (sc3210004)	West Columbia	SC	0.0097 µg/L No EPA limit set
Newberry Co W&Sa (sc3620002)	Newberry	SC	0.0097 µg/L No EPA limit set
Columbia City of (sc4010001)	Columbia	SC	0.0092 µg/L No EPA limit set
Lexington Town of (3210001)	Lexington	SC	0.0091 µg/L No EPA limit set
The Cape Master System	Wilmington	NC	0.0084 µg/L No EPA limit set
Fort Jackson (sc4010501)	Fort Jackson	SC	0.0081 µg/L No EPA limit set
Saluda Co W&S Authority (4120001)	Saluda	SC	0.0080 µg/L No EPA limit set
Bgwc i-20 (sc3250012)	West Columbia	SC	0.0078 µg/L No EPA limit set
Cayce City of (sc3210003)	Cayce	SC	0.0074 µg/L No EPA limit set

Frequently asked questions about Hfpo-Da

What is Hfpo-Da in drinking water?

Hfpo-Da is monitored in US public drinking water under EPA rules. Each supplier's result is reported to the EPA and published here with its source and period.

Does the EPA limit Hfpo-Da?

The EPA has not set a numeric Maximum Contaminant Level for Hfpo-Da. It is still measured and reported, so levels can be compared between suppliers.

How common is Hfpo-Da in US tap water?

Of the 9,676 water suppliers with results on file, 45 detected Hfpo-Da — 0.5% of those tested.