Other
Tce in U.S. tap water
60 public water systems across 5 U.S. states report Tce in their annual Consumer Confidence Report. 2 sit at or above the federal limit.
At or above the federal limit (2)
| Water system | Measured | vs. limit |
|---|---|---|
| La Verne, City Wd — La Verne, Ca, CA 2021 annual report | 0–12 ug/L | 2.4× the limit |
| El Monte, CA 2024 annual report | 0–5.5 ug/L | 1.1× the limit |
Within the federal limit (54)
Showing 50 of 54. The full list is in the JSON API.
Tce by state
Every state where a public water system reports Tce in its annual report, ranked by systems at or above the federal limit.
Frequently asked
+What is Tce?
Tce is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Tce in drinking water?
The federal MCLG for Tce is 0 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 Tce over the federal limit?
2 of the 60 public water systems on The Water Map report Tce at or above its federal limit, spanning 5 U.S. states. The full list is on this page.
+Which states report the most Tce in their drinking water?
Of the systems on The Water Map, California (2 systems at or above the limit) report the most Tce exceedances. The state-by-state table on this page lists every state.
+How can I check if Tce 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 Tce.