Disinfection byproducts · 2024

HAA5 in Boulder, CO tap water

Within the federal limit· 0.5× the limit

Boulder, CO's 2024 HAA5 measurement is below the federal limit.

The measurement

StatisticValue
Average
System-wide
28.9 ug/L
Range
System-wide
15–54 ug/L
Running annual avg
System-wide
32.1 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
0–38.2 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
17.3 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
0–66.4 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
30 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
33.6 ug/L
Reported level
Treated1 Sweetwater Authority Drinking Water
2.3–26.16 ug/L

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

About HAA5

Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter.

Long-term exposure above the federal limit is associated with an increased cancer risk.

How Boulder, CO compares

Nearby systems also reporting HAA5:

People also ask

+Is there HAA5 in Boulder, CO tap water?

Yes — Boulder, CO's 2024 Consumer Confidence Report lists HAA5 at 32.1 ug/L. Boulder, CO's 2024 HAA5 measurement is below the federal limit.

+What's the federal limit for HAA5 in drinking water?

The EPA has not set an enforceable federal limit for HAA5. Utilities still report any measured levels in their annual Consumer Confidence Report.

+What is HAA5?

Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. Long-term exposure above the federal limit is associated with an increased cancer risk.

+Where does this HAA5 measurement come from?

This page reproduces the HAA5 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
HAA5 across the U.S. →
Every public water system measuring HAA5, ranked.