Metals · 2024
Iron in California Water Service - San Mateo, CA tap water
California Water Service - San Mateo, CA's 2024 Iron measurement is below the federal limit of 300 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average SFPUC Water | 14 ug/L | 300 ug/L MCL |
Range SFPUC Water | 0–41 ug/L | 300 ug/L MCL |
Verbatim from California Water Service - San Mateo, CA's 2024 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 California Water Service - San Mateo, CA compares
5 of the 223 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 California Water Service - San Mateo, CA tap water?
Yes — California Water Service - San Mateo, CA's 2024 Consumer Confidence Report lists Iron at 14 ug/L. California Water Service - San Mateo, CA's 2024 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?
5 of the 223 systems on The Water Map measuring Iron report it at or above the federal limit. Examples include Salt Lake City, UT, Bakersfield, City of, CA, City of San Jose - Evg/edv/coy, CA.
+Where does this Iron measurement come from?
This page reproduces the Iron entry from the 2024 Consumer Confidence Report published by the California Water Service - San Mateo, 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/california-water-service-san-mateo/2024/source.