Metals
Cadmium in U.S. tap water
58 public water systems across 10 U.S. states report Cadmium in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
Approaching the limit (2)
| Water system | Measured | vs. limit |
|---|---|---|
| Broad Creek, MD 2024 annual report | 0–4 ug/L | 0.8× the limit |
| Crofton Odenton, MD 2024 annual report | 0–4 ug/L | 0.8× the limit |
Within the federal limit (56)
Showing 50 of 56. The full list is in the JSON API.
Cadmium by state
Every state where a public water system reports Cadmium in its annual report, ranked by systems at or above the federal limit.
Frequently asked
+What is Cadmium?
Cadmium is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Cadmium in drinking water?
The federal MCL for Cadmium is 0.005 mg/L. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have Cadmium over the federal limit?
Zero of the 58 public water systems in The Water Map dataset currently report Cadmium at or above its federal limit.
+Which states report the most Cadmium in their drinking water?
No state currently has a system reporting Cadmium at or above its federal limit in The Water Map dataset. California, Virginia, Alabama have the most systems measuring it.
+How can I check if Cadmium is in my city's tap water?
Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including Cadmium.