Inorganic chemicals · 2023

Ammonia in Contra Costa Water District, CA tap water

Detected — no federal limit

Contra Costa Water District, CA's 2023 report shows Ammonia detected, but the EPA has not set an enforceable federal limit for it.

The measurement

StatisticValue
Highest single sample
Source water
0.2 MG/L
Highest single sample
Entry point
0.53 MG/L
Average
Distribution
0.27 MG/L
Average
Source water
0.124 MG/L
Average
Entry point
0.146 MG/L
Highest single sample
Distribution
0.27 MG/L

Verbatim from Contra Costa Water District, CA's 2023 Consumer Confidence Report — source document ↗

How Contra Costa Water District, CA compares

Nearby systems also reporting Ammonia:

People also ask

+Is there Ammonia in Contra Costa Water District, CA tap water?

Yes — Contra Costa Water District, CA's 2023 Consumer Confidence Report lists Ammonia at 0.27 MG/L. Contra Costa Water District, CA's 2023 report shows Ammonia detected, but the EPA has not set an enforceable federal limit for it.

+What's the federal limit for Ammonia in drinking water?

The EPA has not set an enforceable federal limit for Ammonia. Utilities still report any measured levels in their annual Consumer Confidence Report.

+Where does this Ammonia measurement come from?

This page reproduces the Ammonia entry from the 2023 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/2023/source.

Full report
All Contra Costa Water District, CA water-quality data →
Every contaminant measured in the 2023 report.
Contaminant pillar
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Every public water system measuring Ammonia, ranked.