Metals · 2024
Manganese in California Water Service - San Mateo, CA tap water
California Water Service - San Mateo, CA's 2024 Manganese measurement is below the federal limit of 50 ug/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average SFPUC Water | Not detected ug/L | 50 ug/L MCL |
Range SFPUC Water | 0–2.7 ug/L | 50 ug/L MCL |
Verbatim from California Water Service - San Mateo, CA's 2024 Consumer Confidence Report — source document ↗
About Manganese
A naturally occurring metal from soil and rock.
No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.
How California Water Service - San Mateo, CA compares
5 of the 231 systems measuring Manganese on The Water Map have it at or above the federal limit:
Nearby systems also reporting Manganese:
People also ask
+Is there Manganese in California Water Service - San Mateo, CA tap water?
Yes — California Water Service - San Mateo, CA's 2024 Consumer Confidence Report lists Manganese at Not detected ug/L. California Water Service - San Mateo, CA's 2024 Manganese measurement is below the federal limit of 50 ug/L (MCL).
+What's the federal limit for Manganese in drinking water?
The federal MCL for Manganese is 50 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Manganese?
A naturally occurring metal from soil and rock. No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.
+Which other U.S. cities have Manganese over the federal limit?
5 of the 231 systems on The Water Map measuring Manganese report it at or above the federal limit. Examples include Green Bay, WI, Mesa Del Toro Mwc, CA, Mesa Del Toro Mwc, CA.
+Where does this Manganese measurement come from?
This page reproduces the Manganese 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.