Inorganic chemicals · 2026
Sulfate in San Gabriel Valley Wc - Fontana, CA tap water
San Gabriel Valley Wc - Fontana, CA's 2026 Sulfate measurement is below the federal limit of 500 MG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Source water | 20.555555555555557 MG/L | 500 MG/L MCL |
Highest single sample Source water | 23 MG/L | 500 MG/L MCL |
Verbatim from San Gabriel Valley Wc - Fontana, CA's 2026 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 San Gabriel Valley Wc - Fontana, CA compares
5 of the 245 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 San Gabriel Valley Wc - Fontana, CA tap water?
Yes — San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report lists Sulfate at 20.555555555555557 MG/L. San Gabriel Valley Wc - Fontana, CA's 2026 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 245 systems on The Water Map measuring Sulfate report it at or above the federal limit. Examples include Lakewood, CO, Oxnard, CA, Oxnard Water Dept, CA.
+Where does this Sulfate measurement come from?
This page reproduces the Sulfate entry from the 2026 Consumer Confidence Report published by the San Gabriel Valley Wc - Fontana, 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/san-gabriel-valley-wc-fontana/2026/source.