Disinfectants · 2024
Chloramine in Boulder, CO tap water
Boulder, CO's 2024 Consumer Confidence Report shows Chloramine at or above the federal limit (4 mg/L MCL). Measured value is 1.2× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level Treated1 Sweetwater Authority Drinking Water | 3.1 mg/L | 4 mg/L MCL |
Reported level Treated1 Sweetwater Authority Drinking Water | 0.2–4.66 mg/L | 4 mg/L MCL |
Verbatim from Boulder, CO's 2024 Consumer Confidence Report — source document ↗
About Chloramine
A longer-lasting disinfectant made by combining chlorine with ammonia.
Holds disinfection further into the pipe network, but is regulated under the same residual-disinfectant cap as chlorine.
How Boulder, CO compares
Nearby systems also reporting Chloramine:
People also ask
+Is there Chloramine in Boulder, CO tap water?
Yes — Boulder, CO's 2024 Consumer Confidence Report lists Chloramine at 0.2–4.66 mg/L. Boulder, CO's 2024 Consumer Confidence Report shows Chloramine at or above the federal limit (4 mg/L MCL). Measured value is 1.2× the threshold.
+What's the federal limit for Chloramine in drinking water?
The federal MCL for Chloramine is 4 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Chloramine?
A longer-lasting disinfectant made by combining chlorine with ammonia. Holds disinfection further into the pipe network, but is regulated under the same residual-disinfectant cap as chlorine.
+Where does this Chloramine measurement come from?
This page reproduces the Chloramine 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.