PFAS ("forever chemicals")
Perfluorotetradecanoic acid (PFTeDA) in U.S. tap water
29 public water systems across 11 U.S. states report Perfluorotetradecanoic acid (PFTeDA) in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
What it is
Perfluorotetradecanoic acid, a longer-chain PFAS 'forever chemical.'
Why it's regulated
Monitored under EPA rules; persistent and bioaccumulative.
Approaching the limit (1)
| Water system | Measured | vs. limit |
|---|---|---|
| Boonsboro Keedysville, MD 2024 annual report | 376–7 | 0.9× the limit |
Within the federal limit (27)
| Water system | Measured |
|---|---|
| Albuquerque, NM 2024 annual report | Not detected |
| Brown Deer, WI 2024 annual report | Not detected ug/L |
| Butler, WI 2024 annual report | Not detected ug/L |
| Calvert Manor, MD 2024 annual report | Not detected |
| Chandler, AZ 2024 annual report | 0 ng/L |
| Dallas, TX 2024 annual report | Not detected ng/L |
| Dearborn, MI 2024 annual report | Not detected ug/L |
| Franklin, WI 2024 annual report | Not detected ug/L |
| Greendale, WI 2024 annual report | Not detected ug/L |
| Greenfield, WI 2024 annual report | Not detected ug/L |
| Hales Corners, WI 2024 annual report | Not detected ug/L |
| Menomonee Falls, WI 2024 annual report | Not detected ug/L |
| Mequon, WI 2024 annual report | Not detected ug/L |
| Milwaukee, WI 2024 annual report | Not detected ug/L |
| New Berlin, WI 2024 annual report | Not detected ug/L |
| Pasadena, CA 2023 annual report | Not detected ug/L |
| Salem, OR 2023 annual report | Not detected ug/L |
| Santa Clarita, CA 2024 annual report | Not detected ug/L |
| Shorewood, WI 2024 annual report | Not detected ug/L |
| St. Francis, WI 2024 annual report | Not detected ug/L |
| Thiensville, WI 2024 annual report | Not detected ug/L |
| Tracy, CA 2024 annual report | Not detected |
| Waukesha, WI 2024 annual report | Not detected ug/L |
| Wauwatosa, WI 2024 annual report | Not detected ug/L |
| West Allis, WI 2024 annual report | Not detected ug/L |
| West Valley City, UT 2024 annual report | Not detected ug/L |
| Wilmington, NC 2024 annual report | Not detected ng/L |
Frequently asked
+What is Perfluorotetradecanoic acid (PFTeDA)?
Perfluorotetradecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
+What is the federal limit for Perfluorotetradecanoic acid (PFTeDA) in drinking water?
The federal MCL for Perfluorotetradecanoic acid (PFTeDA) is 1.8 . The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have Perfluorotetradecanoic acid (PFTeDA) over the federal limit?
Zero of the 29 public water systems in The Water Map dataset currently report Perfluorotetradecanoic acid (PFTeDA) at or above its federal limit.
+How can I check if Perfluorotetradecanoic acid (PFTeDA) is in my city's tap water?
Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including Perfluorotetradecanoic acid (PFTeDA).
See Perfluorotetradecanoic acid (PFTeDA) on the map
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