PFAS ("forever chemicals") · 2024

Perfluoropentanoic acid in Boulder, CO tap water

Detected — no federal limit

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

The measurement

StatisticValue
Reported level
SD Formation Wells 1 - 11
0–3.4 ng/L
Reported level
Lake Skinner Outlet (Aqueduct)
Not detected ng/L
Reported level
Treated¹ Sweetwater Authority Drinking Water
0–7.3 ng/L
Reported level
SD Formation Wells 1 - 11
Not detected ng/L
Reported level
Treated¹ Sweetwater Authority Drinking Water
Not detected ng/L

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

About Perfluoropentanoic acid

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

Monitored under EPA rules; persistent in the environment.

People also ask

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

Yes — Boulder, CO's 2024 Consumer Confidence Report lists Perfluoropentanoic acid at 0–7.3 ng/L. Boulder, CO's 2024 report shows Perfluoropentanoic acid detected, but the EPA has not set an enforceable federal limit for it.

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

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

+What is Perfluoropentanoic acid?

Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.

+Where does this Perfluoropentanoic acid measurement come from?

This page reproduces the Perfluoropentanoic 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
Perfluoropentanoic acid across the U.S. →
Every public water system measuring Perfluoropentanoic acid, ranked.