Physical & aggregate · 2025
Odor in City of Antioch, CA tap water
City of Antioch, CA's 2025 Odor measurement is below the federal limit of 3 TON (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Entry point | 2 TON | 3 TON MCL |
Average Entry point | 1.25 TON | 3 TON MCL |
Highest single sample Source water | 1 TON | 3 TON MCL |
Average Source water | 1 TON | 3 TON MCL |
Verbatim from City of Antioch, CA's 2025 Consumer Confidence Report — source document ↗
About Odor
A measure of detectable smell in the water.
Regulated only as a secondary (cosmetic) standard.
How City of Antioch, CA compares
5 of the 193 systems measuring Odor on The Water Map have it at or above the federal limit:
Nearby systems also reporting Odor:
People also ask
+Is there Odor in City of Antioch, CA tap water?
Yes — City of Antioch, CA's 2025 Consumer Confidence Report lists Odor at 1.25 TON. City of Antioch, CA's 2025 Odor measurement is below the federal limit of 3 TON (MCL).
+What's the federal limit for Odor in drinking water?
The federal MCL for Odor is 3 TON. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Odor?
A measure of detectable smell in the water. Regulated only as a secondary (cosmetic) standard.
+Which other U.S. cities have Odor over the federal limit?
5 of the 193 systems on The Water Map measuring Odor report it at or above the federal limit. Examples include Santa Rosa, CA, Escondido, City of, CA, City of Martinez, CA.
+Where does this Odor measurement come from?
This page reproduces the Odor entry from the 2025 Consumer Confidence Report published by the City of Antioch, 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/antioch/2025/source.