Microbial · 2024

Total Coliform in Boulder, CO tap water

Detected — no federal limit

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

The measurement

StatisticValue
Reported level
National City Well 2
3
Reported level
National City Well 3
3
Reported level
National City Well 4
3
Reported level
SD Formation Wells 1- 11
3
Reported level
Lake Skinner Outlet (Aqueduct)
3
Reported level
Sweetwater Reservoir
3
Reported level
Treated¹ Sweetwater Authority Drinking Water
0.7 %
Range
and Average
3

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

About Total Coliform

A group of bacteria used as an indicator of overall water-system sanitation.

Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.

How Boulder, CO compares

Nearby systems also reporting Total Coliform:

People also ask

+Is there Total Coliform in Boulder, CO tap water?

Yes — Boulder, CO's 2024 Consumer Confidence Report lists Total Coliform at 3. Boulder, CO's 2024 report shows Total Coliform detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Total Coliform in drinking water?

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

+What is Total Coliform?

A group of bacteria used as an indicator of overall water-system sanitation. Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.

+Where does this Total Coliform measurement come from?

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