VOCs & pesticides · 2026

Simazine in San Gabriel Valley Wc - Fontana, CA tap water

Not detected

San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report tested for Simazine and reported no detectable amount.

The measurement

StatisticValue
Highest single sample
Source water
Not detected UG/L

Verbatim from San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report — source document ↗

How San Gabriel Valley Wc - Fontana, CA compares

2 of the 183 systems measuring Simazine on The Water Map have it at or above the federal limit:

Nearby systems also reporting Simazine:

People also ask

+Is there Simazine in San Gabriel Valley Wc - Fontana, CA tap water?

San Gabriel Valley Wc - Fontana, CA's 2026 Consumer Confidence Report tested for Simazine and found no detectable amount.

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

The federal MCL for Simazine is 4 UG/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.

+Which other U.S. cities have Simazine over the federal limit?

2 of the 183 systems on The Water Map measuring Simazine report it at or above the federal limit. Examples include Columbus, OH, Charlotte, NC.

+Where does this Simazine measurement come from?

This page reproduces the Simazine 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.

Full report
All San Gabriel Valley Wc - Fontana, CA water-quality data →
Every contaminant measured in the 2026 report.
Contaminant pillar
Simazine across the U.S. →
Every public water system measuring Simazine, ranked.