Disinfectants · 2025
Chloramine in Cary, NC tap water
Cary, NC's 2025 Chloramine level is between 80% and 100% of the federal limit (4 mg/L MRDL) — measured but not in violation.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Reported level System-wide | 2.96 mg/L | 4 mg/L MRDL |
Range System-wide | 1.33–3.91 mg/L | 4 mg/L MRDL |
Verbatim from Cary, NC's 2025 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 Cary, NC compares
5 of the 106 systems measuring Chloramine on The Water Map have it at or above the federal limit:
Nearby systems also reporting Chloramine:
People also ask
+Is there Chloramine in Cary, NC tap water?
Yes — Cary, NC's 2025 Consumer Confidence Report lists Chloramine at 1.33–3.91 mg/L. Cary, NC's 2025 Chloramine level is between 80% and 100% of the federal limit (4 mg/L MRDL) — measured but not in violation.
+What's the federal limit for Chloramine in drinking water?
The federal MRDL 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.
+Which other U.S. cities have Chloramine over the federal limit?
5 of the 106 systems on The Water Map measuring Chloramine report it at or above the federal limit. Examples include Hollywood, FL, Centennial, CO, Pueblo, CO.
+Where does this Chloramine measurement come from?
This page reproduces the Chloramine entry from the 2025 Consumer Confidence Report published by the Cary, NC 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/nc/cary/2025/source.