Metals · 2026
Manganese in San Diego, City of, CA tap water
San Diego, City of, CA's 2026 Manganese measurement is below the federal limit of 50 UG/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Entry point | 7.944444444444445 UG/L | 50 UG/L MCL |
Highest single sample Entry point | 43.1 UG/L | 50 UG/L MCL |
Highest single sample Source water | 56.1 UG/L | 50 UG/L MCL |
Average Other | 8.467777777777778 UG/L | 50 UG/L MCL |
Average Source water | 22.820833333333336 UG/L | 50 UG/L MCL |
Highest single sample Other | 16.6 UG/L | 50 UG/L MCL |
Verbatim from San Diego, City of, CA's 2026 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 San Diego, City of, CA compares
5 of the 249 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 San Diego, City of, CA tap water?
Yes — San Diego, City of, CA's 2026 Consumer Confidence Report lists Manganese at 22.820833333333336 UG/L. San Diego, City of, CA's 2026 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 249 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, Kent, WA.
+Where does this Manganese measurement come from?
This page reproduces the Manganese entry from the 2026 Consumer Confidence Report published by the San Diego, City of, 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-diego/2026/source.