PFAS ("forever chemicals") · 2023
PFOA in Philadelphia, PA tap water
Philadelphia, PA's 2023 Consumer Confidence Report shows PFOA at or above the federal limit (4 ng/L MCL). Measured value is 1.1× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Maximum System-wide | 7.3 ng/L | 4 ng/L MCL |
Range System-wide | 2.5–7.3 ng/L | 4 ng/L MCL |
Average System-wide | 4.6 ng/L | None set |
Range System-wide | 0–8.1 ng/L | None set |
Verbatim from Philadelphia, PA's 2023 Consumer Confidence Report — source document ↗
About PFOA
Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products.
Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
People also ask
+Is there PFOA in Philadelphia, PA tap water?
Yes — Philadelphia, PA's 2023 Consumer Confidence Report lists PFOA at 4.6 ng/L. Philadelphia, PA's 2023 Consumer Confidence Report shows PFOA at or above the federal limit (4 ng/L MCL). Measured value is 1.1× the threshold.
+What's the federal limit for PFOA in drinking water?
The federal MCL for PFOA is 4 ng/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is PFOA?
Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
+Where does this PFOA measurement come from?
This page reproduces the PFOA entry from the 2023 Consumer Confidence Report published by the Philadelphia, PA water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/pa/philadelphia/2023/source.