Metals · 2023
Silica in City of San Bruno — San Bruno, Ca, CA tap water
City of San Bruno — San Bruno, Ca, CA's 2023 report shows Silica detected, but the EPA has not set an enforceable federal limit for it.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 7.5 mg/L | None set |
Range System-wide | 4.9–9.9 mg/L | None set |
Verbatim from City of San Bruno — San Bruno, Ca, CA's 2023 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 City of San Bruno — San Bruno, Ca, CA compares
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People also ask
+Is there Silica in City of San Bruno — San Bruno, Ca, CA tap water?
Yes — City of San Bruno — San Bruno, Ca, CA's 2023 Consumer Confidence Report lists Silica at 7.5 mg/L. City of San Bruno — San Bruno, Ca, CA's 2023 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 2023 Consumer Confidence Report published by the City of San Bruno — San Bruno, Ca, 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-bruno-san-bruno-ca/2023/source.