Metals · 2024
Barium in Madison, WI tap water
Madison, WI's 2024 Consumer Confidence Report shows Barium at or above the federal limit (2 ug/L MCLG). Measured value is 10.5× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Average Median Level Found | 21 ug/L | 2 ug/L MCLG |
Range System-wide | 7.2–69 ug/L | 2 ug/L MCLG |
Verbatim from Madison, WI's 2024 Consumer Confidence Report — source document ↗
About Barium
A metal from erosion of natural deposits and industrial discharge.
Long-term exposure above the federal limit can raise blood pressure.
How Madison, WI compares
5 of the 286 systems measuring Barium on The Water Map have it at or above the federal limit:
Nearby systems also reporting Barium:
People also ask
+Is there Barium in Madison, WI tap water?
Yes — Madison, WI's 2024 Consumer Confidence Report lists Barium at 21 ug/L. Madison, WI's 2024 Consumer Confidence Report shows Barium at or above the federal limit (2 ug/L MCLG). Measured value is 10.5× the threshold.
+What's the federal limit for Barium in drinking water?
The federal MCLG for Barium is 2 ug/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Barium?
A metal from erosion of natural deposits and industrial discharge. Long-term exposure above the federal limit can raise blood pressure.
+Which other U.S. cities have Barium over the federal limit?
5 of the 286 systems on The Water Map measuring Barium report it at or above the federal limit. Examples include Columbus, OH, Hollywood, FL, Mcallen, TX.
+Where does this Barium measurement come from?
This page reproduces the Barium entry from the 2024 Consumer Confidence Report published by the Madison, WI 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/wi/madison/2024/source.