PFAS ("forever chemicals") · 2024
Perfluorononanoic acid in Pomona, CA tap water
Pomona, CA's 2024 Consumer Confidence Report shows Perfluorononanoic acid at or above the federal limit (4 ng/L MCL). Measured value is 1.3× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Miramar Groundwater Well #1 | Not detected ng/L | 4 ng/L MCL |
Range Pomona Groundwater | 5 ng/L | 4 ng/L MCL |
Reported level Miramar Groundwater Well #2 | Not detected ng/L | 4 ng/L MCL |
Reported level Miramar Groundwater Grand Well | Not detected ng/L | 4 ng/L MCL |
Reported level Miramar Effluent | Not detected ng/L | 4 ng/L MCL |
Reported level Weymouth Effluent | Not detected ng/L | 4 ng/L MCL |
Reported level Miragrand Well | Not detected ng/L | 4 ng/L MCL |
Verbatim from Pomona, CA'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 Pomona, CA compares
Nearby systems also reporting Perfluorononanoic acid:
People also ask
+Is there Perfluorononanoic acid in Pomona, CA tap water?
Yes — Pomona, CA's 2024 Consumer Confidence Report lists Perfluorononanoic acid at 5 ng/L. Pomona, CA's 2024 Consumer Confidence Report shows Perfluorononanoic acid at or above the federal limit (4 ng/L MCL). Measured value is 1.3× the threshold.
+What's the federal limit for Perfluorononanoic acid in drinking water?
The federal MCL for Perfluorononanoic acid 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 Perfluorononanoic acid?
Perfluorononanoic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
+Where does this Perfluorononanoic acid measurement come from?
This page reproduces the Perfluorononanoic acid entry from the 2024 Consumer Confidence Report published by the Pomona, CA 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/ca/pomona/2024/source.