Metals · 2025
Barium in Rochester, MN tap water
Rochester, MN's 2025 Barium measurement is below the federal limit of 2 (MCLG).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range of Detected Test Results | 0.0351–0.0899 | 2 MCLG |
Maximum Average or Highest Single Test Result | 0.09 | 2 MCLG |
Verbatim from Rochester, MN's 2025 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 Rochester, MN 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 Rochester, MN tap water?
Yes — Rochester, MN's 2025 Consumer Confidence Report lists Barium at 0.09. Rochester, MN's 2025 Barium measurement is below the federal limit of 2 (MCLG).
+What's the federal limit for Barium in drinking water?
The federal MCLG for Barium is 2 . 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 2025 Consumer Confidence Report published by the Rochester, MN 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/mn/rochester/2025/source.