Metals · 2023
Iron in San Francisco SFPUC, CA tap water
San Francisco SFPUC, CA's 2023 Iron measurement is below the federal limit of 300 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average System-wide | 14 ug/L | 300 ug/L MCL |
Range System-wide | 0–41 ug/L | 300 ug/L MCL |
Average System-wide | 29 ug/L | 300 ug/L MCL |
Range Or Level Found | 28–31 ug/L | 300 ug/L MCL |
Verbatim from San Francisco SFPUC, CA's 2023 Consumer Confidence Report — source document ↗
About Iron
A naturally occurring metal common in groundwater.
Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
How San Francisco SFPUC, CA compares
4 of the 80 systems measuring Iron on The Water Map have it at or above the federal limit:
Nearby systems also reporting Iron:
People also ask
+Is there Iron in San Francisco SFPUC, CA tap water?
Yes — San Francisco SFPUC, CA's 2023 Consumer Confidence Report lists Iron at 29 ug/L. San Francisco SFPUC, CA's 2023 Iron measurement is below the federal limit of 300 ug/L (MCL).
+What's the federal limit for Iron in drinking water?
The federal MCL for Iron is 300 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Iron?
A naturally occurring metal common in groundwater. Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
+Which other U.S. cities have Iron over the federal limit?
4 of the 80 systems on The Water Map measuring Iron report it at or above the federal limit. Examples include Salt Lake City, UT, Palm Coast, FL, Miramar, FL.
+Where does this Iron measurement come from?
This page reproduces the Iron 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.