Disinfectants · 2023
Chloramine in Helix Water District — La Mesa, Ca, CA tap water
Helix Water District — La Mesa, Ca, CA's 2023 Chloramine measurement is below the federal limit of 4 mg/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Minimum Helix Plant | 1.9 mg/L | 4 mg/L MCL |
Maximum Helix Plant | 2 mg/L | 4 mg/L MCL |
Average Helix Plant | 1.9 mg/L | 4 mg/L MCL |
Verbatim from Helix Water District — La Mesa, Ca, CA's 2023 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 Helix Water District — La Mesa, Ca, CA compares
1 of the 19 CA 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 Helix Water District — La Mesa, Ca, CA tap water?
Yes — Helix Water District — La Mesa, Ca, CA's 2023 Consumer Confidence Report lists Chloramine at 1.9 mg/L. Helix Water District — La Mesa, Ca, CA's 2023 Chloramine measurement is below the federal limit of 4 mg/L (MCL).
+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.
+Which other U.S. cities have Chloramine over the federal limit?
1 of the 19 CA systems on The Water Map measuring Chloramine report it at or above the federal limit. Examples include Sweetwater Authority — Chula Vista, Ca, CA.
+Where does this Chloramine measurement come from?
This page reproduces the Chloramine entry from the 2023 Consumer Confidence Report published by the Helix Water District — La Mesa, Ca, CA 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/ca/helix-water-district-la-mesa-ca/2023/source.