Disinfection byproducts · 2024
Chlorate in Daly City, CA tap water
Daly City, CA's 2024 Chlorate measurement is below the federal limit of 800 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 144 ug/L | 800 ug/L MCL |
Range System-wide | 24–597 ug/L | 800 ug/L MCL |
Verbatim from Daly City, CA's 2024 Consumer Confidence Report — source document ↗
About Chlorate
A byproduct that can form during disinfection, especially when hypochlorite solutions degrade.
Has no enforceable federal limit but is on the EPA contaminant candidate list; high levels can affect the thyroid.
How Daly City, CA compares
1 of the 55 systems measuring Chlorate on The Water Map have it at or above the federal limit:
Nearby systems also reporting Chlorate:
People also ask
+Is there Chlorate in Daly City, CA tap water?
Yes — Daly City, CA's 2024 Consumer Confidence Report lists Chlorate at 144 ug/L. Daly City, CA's 2024 Chlorate measurement is below the federal limit of 800 ug/L (MCL).
+What's the federal limit for Chlorate in drinking water?
The federal MCL for Chlorate is 800 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Chlorate?
A byproduct that can form during disinfection, especially when hypochlorite solutions degrade. Has no enforceable federal limit but is on the EPA contaminant candidate list; high levels can affect the thyroid.
+Which other U.S. cities have Chlorate over the federal limit?
1 of the 55 systems on The Water Map measuring Chlorate report it at or above the federal limit. Examples include Chula Vista Sweetwater, CA.
+Where does this Chlorate measurement come from?
This page reproduces the Chlorate entry from the 2024 Consumer Confidence Report published by the Daly City, 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/daly-city/2024/source.