Inorganic chemicals · 2024
Sulfate in Contra Costa Water District, CA tap water
Contra Costa Water District, CA's 2024 Sulfate measurement is below the federal limit of 500 MG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Entry point | 26.2 MG/L | 500 MG/L MCL |
Highest single sample Source water | 32 MG/L | 500 MG/L MCL |
Average Source water | 16.46 MG/L | 500 MG/L MCL |
Average Distribution | 52 MG/L | 500 MG/L MCL |
Highest single sample Distribution | 52 MG/L | 500 MG/L MCL |
Highest single sample Entry point | 52 MG/L | 500 MG/L MCL |
Verbatim from Contra Costa Water District, CA's 2024 Consumer Confidence Report — source document ↗
About Sulfate
A naturally occurring mineral from rock and soil.
No health-based federal limit; high levels can have a laxative effect and a bitter taste.
How Contra Costa Water District, CA compares
5 of the 221 systems measuring Sulfate on The Water Map have it at or above the federal limit:
Nearby systems also reporting Sulfate:
People also ask
+Is there Sulfate in Contra Costa Water District, CA tap water?
Yes — Contra Costa Water District, CA's 2024 Consumer Confidence Report lists Sulfate at 52 MG/L. Contra Costa Water District, CA's 2024 Sulfate measurement is below the federal limit of 500 MG/L (MCL).
+What's the federal limit for Sulfate in drinking water?
The federal MCL for Sulfate is 500 MG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Sulfate?
A naturally occurring mineral from rock and soil. No health-based federal limit; high levels can have a laxative effect and a bitter taste.
+Which other U.S. cities have Sulfate over the federal limit?
5 of the 221 systems on The Water Map measuring Sulfate report it at or above the federal limit. Examples include Oxnard Water Dept, CA, Oxnard Water Dept, CA, Oxnard Water Dept, CA.
+Where does this Sulfate measurement come from?
This page reproduces the Sulfate entry from the 2024 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/2024/source.