Metals · 2025
Silica in Riverside, City of, CA tap water
Riverside, City of, CA's 2025 report shows Silica detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Highest single sample Distribution | 29 MG/L | None set |
Average Distribution | 25.25 MG/L | None set |
Average Source water | 23.666666666666668 MG/L | None set |
Highest single sample Source water | 25 MG/L | None set |
Verbatim from Riverside, City of, CA's 2025 Consumer Confidence Report — source document ↗
About Silica
A naturally occurring compound from sand and rock.
Not federally regulated for health; relevant mainly for industrial water use.
How Riverside, City of, CA compares
Nearby systems also reporting Silica:
People also ask
+Is there Silica in Riverside, City of, CA tap water?
Yes — Riverside, City of, CA's 2025 Consumer Confidence Report lists Silica at 25.25 MG/L. Riverside, City of, CA's 2025 report shows Silica detected, but the EPA has not set an enforceable federal limit for it.
+What's the federal limit for Silica in drinking water?
The EPA has not set an enforceable federal limit for Silica. Utilities still report any measured levels in their annual Consumer Confidence Report.
+What is Silica?
A naturally occurring compound from sand and rock. Not federally regulated for health; relevant mainly for industrial water use.
+Where does this Silica measurement come from?
This page reproduces the Silica entry from the 2025 Consumer Confidence Report published by the Riverside, City of, 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/riverside/2025/source.