Metals · 2023

Manganese in Irvine Ranch Water District, CA tap water

Approaching the federal limit· 0.8× the limit

Irvine Ranch Water District, CA's 2023 Manganese level is between 80% and 100% of the federal limit (50 UG/L MCL) — measured but not in violation.

The measurement

StatisticValue
Average
Entry point
12.251282051282052 UG/L
Highest single sample
Source water
217 UG/L
Highest single sample
Entry point
79.8 UG/L
Average
Source water
41.70666666666667 UG/L

Verbatim from Irvine Ranch Water District, CA's 2023 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 Irvine Ranch Water District, CA compares

5 of the 107 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 Irvine Ranch Water District, CA tap water?

Yes — Irvine Ranch Water District, CA's 2023 Consumer Confidence Report lists Manganese at 41.70666666666667 UG/L. Irvine Ranch Water District, CA's 2023 Manganese level is between 80% and 100% of the federal limit (50 UG/L MCL) — measured but not in violation.

+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 107 systems on The Water Map measuring Manganese report it at or above the federal limit. Examples include Mesa Del Toro Mwc, CA, Mesa Del Toro Mwc, CA, Jersey City, NJ.

+Where does this Manganese measurement come from?

This page reproduces the Manganese entry from the 2023 Consumer Confidence Report published by the Irvine Ranch Water District, 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/irvine-ranch-water-district/2023/source.

Full report
All Irvine Ranch Water District, CA water-quality data →
Every contaminant measured in the 2023 report.
Contaminant pillar
Manganese across the U.S. →
Every public water system measuring Manganese, ranked.