PFAS ("forever chemicals") · 2024
Perfluorononanoic acid in Rockville, MD tap water
Rockville, MD's 2024 Perfluorononanoic acid measurement is below the federal limit of 10 (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 0.27 | 10 MCL |
Minimum System-wide | 0 | 10 MCL |
Maximum System-wide | 0.57 | 10 MCL |
Verbatim from Rockville, MD's 2024 Consumer Confidence Report — source document ↗
About Perfluorononanoic acid
Perfluorononanoic acid, a PFAS 'forever chemical.'
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
How Rockville, MD compares
1 of the 68 systems measuring Perfluorononanoic acid on The Water Map have it at or above the federal limit:
Nearby systems also reporting Perfluorononanoic acid:
People also ask
+Is there Perfluorononanoic acid in Rockville, MD tap water?
Yes — Rockville, MD's 2024 Consumer Confidence Report lists Perfluorononanoic acid at 0.27. Rockville, MD's 2024 Perfluorononanoic acid measurement is below the federal limit of 10 (MCL).
+What's the federal limit for Perfluorononanoic acid in drinking water?
The federal MCL for Perfluorononanoic acid is 10 . The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Perfluorononanoic acid?
Perfluorononanoic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
+Which other U.S. cities have Perfluorononanoic acid over the federal limit?
1 of the 68 systems on The Water Map measuring Perfluorononanoic acid report it at or above the federal limit. Examples include Pomona, CA.
+Where does this Perfluorononanoic acid measurement come from?
This page reproduces the Perfluorononanoic acid entry from the 2024 Consumer Confidence Report published by the Rockville, MD 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/md/rockville/2024/source.