Other · 2025
Trichlorobenzene 124 in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2025 Consumer Confidence Report tested for Trichlorobenzene 124 and reported no detectable amount.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Source water | Not detected UG/L | 5 UG/L MCL |
Highest single sample Entry point | Not detected UG/L | 5 UG/L MCL |
Verbatim from Contra Costa Water District, CA's 2025 Consumer Confidence Report — source document ↗
How Contra Costa Water District, CA compares
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People also ask
+Is there Trichlorobenzene 124 in Contra Costa Water District, CA tap water?
Contra Costa Water District, CA's 2025 Consumer Confidence Report tested for Trichlorobenzene 124 and found no detectable amount.
+What's the federal limit for Trichlorobenzene 124 in drinking water?
The federal MCL for Trichlorobenzene 124 is 5 UG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+Where does this Trichlorobenzene 124 measurement come from?
This page reproduces the Trichlorobenzene 124 entry from the 2025 Consumer Confidence Report published by the Contra Costa Water District, 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/contra-costa-water-district/2025/source.