Metals · 2024

Chromium, Hexavalent in Boulder, CO tap water

Detected — no federal limit

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

The measurement

StatisticValue
Reported level
National City Well 2
0.2 ug/L
Reported level
National City Well 4
Not detected ug/L
Reported level
SD Formation Wells 1 - 11
0–0.3 ug/L
Reported level
Lake Skinner Outlet (Aqueduct)
Not detected ug/L
Reported level
Sweetwater Reservoir
0.2 ug/L
Reported level
Treated Sweetwater Authority Drinking Water
0–0.4 ug/L
Reported level
National City Well 2
0.2 ug/L
Reported level
National City Well 3
Not detected ug/L
Reported level
SD Formation Wells 1 - 11
Not detected ug/L
Reported level
Sweetwater Reservoir
0.2 ug/L
Reported level
Treated Sweetwater Authority Drinking Water
0.2 ug/L

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

About Chromium, Hexavalent

Hexavalent chromium ('chromium-6') — the more toxic form of chromium.

A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.

People also ask

+Is there Chromium, Hexavalent in Boulder, CO tap water?

Yes — Boulder, CO's 2024 Consumer Confidence Report lists Chromium, Hexavalent at 0–0.4 ug/L. Boulder, CO's 2024 report shows Chromium, Hexavalent detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Chromium, Hexavalent in drinking water?

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

+What is Chromium, Hexavalent?

Hexavalent chromium ('chromium-6') — the more toxic form of chromium. A known carcinogen by inhalation; regulated nationally only within the total-chromium limit, with stricter limits in some states.

+Where does this Chromium, Hexavalent measurement come from?

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