Metals · 2023
Boron in San Francisco SFPUC, CA tap water
San Francisco SFPUC, CA's 2023 Boron measurement is below the federal limit of 1000 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 41 ug/L | 1000 ug/L MCL |
Range System-wide | 23–65 ug/L | 1000 ug/L MCL |
Verbatim from San Francisco SFPUC, CA's 2023 Consumer Confidence Report — source document ↗
About Boron
A naturally occurring element from rock and soil.
No enforceable federal limit; the EPA has issued a health advisory level.
How San Francisco SFPUC, CA compares
5 of the 57 systems measuring Boron on The Water Map have it at or above the federal limit:
Nearby systems also reporting Boron:
People also ask
+Is there Boron in San Francisco SFPUC, CA tap water?
Yes — San Francisco SFPUC, CA's 2023 Consumer Confidence Report lists Boron at 41 ug/L. San Francisco SFPUC, CA's 2023 Boron measurement is below the federal limit of 1000 ug/L (MCL).
+What's the federal limit for Boron in drinking water?
The federal MCL for Boron is 1000 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Boron?
A naturally occurring element from rock and soil. No enforceable federal limit; the EPA has issued a health advisory level.
+Which other U.S. cities have Boron over the federal limit?
5 of the 57 systems on The Water Map measuring Boron report it at or above the federal limit. Examples include Oxnard, CA, Burbank, CA, Inglewood, CA.
+Where does this Boron measurement come from?
This page reproduces the Boron entry from the 2023 Consumer Confidence Report published by the San Francisco SFPUC, 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-francisco-sfpuc/2023/source.