What the EPA limit means
No federal limit
The EPA has not set an enforceable numeric limit for this contaminant.
—
Health goal (MCLG) — the level with no known health effect. It is a goal, not a legal limit, and is often zero for carcinogens.
UCMR-5
Where these measurements come from. Hover the tag for the EPA programme and years.
Where PFBS was found
The water suppliers reporting the highest levels, worst first.
| Supplier | City | State | Level vs EPA limit |
|---|---|---|---|
| Calhoun | Calhoun | GA | 0.2900 µg/L No EPA limit set |
| Newton Falls City | Newton Falls | OH | 0.2200 µg/L No EPA limit set |
| Gadsden, the Wwsb of the City of | Gadsden | AL | 0.1554 µg/L No EPA limit set |
| Chattooga County | Trion | GA | 0.1500 µg/L No EPA limit set |
| Safford City of | Safford | AZ | 0.1440 µg/L No EPA limit set |
| Northeast Etowah County Water Co-Op | Gadsden | AL | 0.1400 µg/L No EPA limit set |
| Highland Water Authority | Gadsden | AL | 0.1343 µg/L No EPA limit set |
| West Etowah Water & Fire Pro Authority | Attalla | AL | 0.1200 µg/L No EPA limit set |
| Shelby County Commission-Water Services | Columbiana | AL | 0.1135 µg/L No EPA limit set |
| Globe City of | Globe | AZ | 0.1133 µg/L No EPA limit set |
| Sterrett-Vandiver Water System, Inc. | Sterrett | AL | 0.1100 µg/L No EPA limit set |
| Pell City, City of | Pell City | AL | 0.0940 µg/L No EPA limit set |
| Floyd County | Rome | GA | 0.0933 µg/L No EPA limit set |
| Arizona Water Co - Pinal Valley | Casa Grande | AZ | 0.0911 µg/L No EPA limit set |
| Prattville, the Ww Board of the City of | Prattville | AL | 0.0883 µg/L No EPA limit set |
| Alabaster Water Department, City of | Alabaster | AL | 0.0850 µg/L No EPA limit set |
| Clanton, the Ww & Sb of the City of | Clanton | AL | 0.0850 µg/L No EPA limit set |
| Wetumpka, the Ww & Sb of the City of | Wetumpka | AL | 0.0820 µg/L No EPA limit set |
| Chatsworth | Chatsworth | GA | 0.0810 µg/L No EPA limit set |
| Centre Water & Sewer Board | Centre | AL | 0.0770 µg/L No EPA limit set |
| Tri Community Water System | Millbrook | AL | 0.0730 µg/L No EPA limit set |
| Marbury Water System, Inc. | Marbury | AL | 0.0730 µg/L No EPA limit set |
| Millbrook Utilities | Millbrook | AL | 0.0650 µg/L No EPA limit set |
| Pelham, City of | Pelham | AL | 0.0643 µg/L No EPA limit set |
| Brookwood Comm Wtr System | Fayetteville | NC | 0.0633 µg/L No EPA limit set |
Frequently asked questions about PFBS
What is PFBS in drinking water?
PFBS 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 PFBS?
The EPA has not set a numeric Maximum Contaminant Level for PFBS. It is still measured and reported, so levels can be compared between suppliers.
How common is PFBS in US tap water?
Of the 9,676 water suppliers with results on file, 1,599 detected PFBS — 16.5% of those tested.