Metals
Vanadium in U.S. tap water
20 public water systems across 3 U.S. states report Vanadium in their annual Consumer Confidence Report. 1 sit at or above the federal limit.
At or above the federal limit (1)
| Water system | Measured | vs. limit |
|---|---|---|
| Ontario, CA 2024 annual report | 3.8 ug/L | 1.3× the limit |
Within the federal limit (16)
| Water system | Measured |
|---|---|
| Chula Vista Sweetwater, CA 2024 annual report | 14–19 ug/L |
| Stockton, CA 2024 annual report | 19 ug/L |
| Chico, CA 2024 annual report | 14 ug/L |
| Salinas, CA 2024 annual report | 11 ug/L |
| Visalia, CA 2024 annual report | 9.1 ug/L |
| Bakersfield, CA 2024 annual report | 7.3 ug/L |
| Burbank, CA 2024 annual report | 0–4.5 ug/L |
| Simi Valley, CA 2024 annual report | 4.3 ug/L |
| Irvine, CA 2023 annual report | 3.9 ug/L |
| Pomona, CA 2024 annual report | 3.9 ug/L |
| West Covina, CA 2024 annual report | 3.7 ug/L |
| Inglewood, CA 2023 annual report | 3.5 ug/L |
| Vacaville, CA 2024 annual report | 3.1 ug/L |
| Huntington Beach, CA 2025 annual report | 1.2 ug/L |
| El Cajon, CA 2024 annual report | Not detected ug/L |
| West Jordan, UT 2024 annual report | 0 ug/L |
Frequently asked
+What is Vanadium?
Vanadium is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Vanadium in drinking water?
The federal NL for Vanadium is 50 ug/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 Vanadium over the federal limit?
1 of the 20 public water systems on The Water Map report Vanadium at or above its federal limit, spanning 3 U.S. states. The full list is on this page.
+How can I check if Vanadium 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 Vanadium.