PFAS ("forever chemicals") · 2023
Perfluorononanoic acid in Commerce-city, Water Dept. — San Jose, Ca, CA tap water
Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 Perfluorononanoic acid measurement is below the federal limit of 10 ng/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Groundwater | 0–3.3 ng/L | 10 ng/L MCL |
Average Groundwater | 1 ng/L | 10 ng/L MCL |
Range Surface Water | Not detected ng/L | 10 ng/L MCL |
Average Surface Water | Not detected ng/L | 10 ng/L MCL |
Verbatim from Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 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 Commerce-city, Water Dept. — San Jose, Ca, CA compares
1 of the 11 CA 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 Commerce-city, Water Dept. — San Jose, Ca, CA tap water?
Yes — Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 Consumer Confidence Report lists Perfluorononanoic acid at 1 ng/L. Commerce-city, Water Dept. — San Jose, Ca, CA's 2023 Perfluorononanoic acid measurement is below the federal limit of 10 ng/L (MCL).
+What's the federal limit for Perfluorononanoic acid in drinking water?
The federal MCL for Perfluorononanoic acid is 10 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.
+Which other U.S. cities have Perfluorononanoic acid over the federal limit?
1 of the 11 CA systems on The Water Map measuring Perfluorononanoic acid report it at or above the federal limit. Examples include China Lake Naval Air Weapons Station — China Lake, Ca, CA.
+Where does this Perfluorononanoic acid measurement come from?
This page reproduces the Perfluorononanoic acid entry from the 2023 Consumer Confidence Report published by the Commerce-city, Water Dept. — San Jose, Ca, 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/commerce-city-water-dept-san-jose-ca/2023/source.