PFAS ("forever chemicals") · 2024

Perfluorohexanoic acid in Boulder, CO tap water

Detected — no federal limit

Boulder, CO's 2024 report shows Perfluorohexanoic acid detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Reported level
National City Well 2
Not detected ng/L
Reported level
National City Well 3
Not detected ng/L
Reported level
National City Well 4
Not detected ng/L
Reported level
SD Formation Wells 1 - 11
0–2.5 ng/L
Reported level
Lake Skinner Outlet (Aqueduct)
Not detected ng/L
Reported level
Treated¹ Sweetwater Authority Drinking Water
0–7.7 ng/L
Reported level
SD Formation Wells 1 - 11
Not detected ng/L
Reported level
Treated¹ Sweetwater Authority Drinking Water
2.6 ng/L

Verbatim from Boulder, CO's 2024 Consumer Confidence Report — source document ↗

About Perfluorohexanoic acid

Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.'

Monitored under EPA rules; persistent and widely detected.

People also ask

+Is there Perfluorohexanoic acid in Boulder, CO tap water?

Yes — Boulder, CO's 2024 Consumer Confidence Report lists Perfluorohexanoic acid at 0–7.7 ng/L. Boulder, CO's 2024 report shows Perfluorohexanoic acid detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Perfluorohexanoic acid in drinking water?

The EPA has not set an enforceable federal limit for Perfluorohexanoic acid. Utilities still report any measured levels in their annual Consumer Confidence Report.

+What is Perfluorohexanoic acid?

Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and widely detected.

+Where does this Perfluorohexanoic acid measurement come from?

This page reproduces the Perfluorohexanoic acid entry from the 2024 Consumer Confidence Report published by the Boulder, CO 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/co/boulder/2024/source.

Full report
All Boulder, CO water-quality data →
Every contaminant measured in the 2024 report.
Contaminant pillar
Perfluorohexanoic acid across the U.S. →
Every public water system measuring Perfluorohexanoic acid, ranked.