Metals · 2023
Copper in Baltimore, MD tap water
Baltimore, MD's 2023 Copper measurement is below the federal limit of 1.3 mg/L (MCLG).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
90th percentile At the tap | 0.029 mg/L | 1.3 mg/L MCLG |
Verbatim from Baltimore, MD's 2023 Consumer Confidence Report — source document ↗
About Copper
A metal that enters water from corroding household plumbing.
Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.
How Baltimore, MD compares
5 of the 392 systems measuring Copper on The Water Map have it at or above the federal limit:
Nearby systems also reporting Copper:
People also ask
+Is there Copper in Baltimore, MD tap water?
Yes — Baltimore, MD's 2023 Consumer Confidence Report lists Copper at 0.029 mg/L. Baltimore, MD's 2023 Copper measurement is below the federal limit of 1.3 mg/L (MCLG).
+What's the federal limit for Copper in drinking water?
The federal MCLG for Copper is 1.3 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Copper?
A metal that enters water from corroding household plumbing. Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.
+Which other U.S. cities have Copper over the federal limit?
5 of the 392 systems on The Water Map measuring Copper report it at or above the federal limit. Examples include Town of Denton, MD, Oxnard, CA, High Point, NC.
+Where does this Copper measurement come from?
This page reproduces the Copper entry from the 2023 Consumer Confidence Report published by the Baltimore, MD 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/md/baltimore/2023/source.