Inorganic chemicals
Dibromoacetic acid in U.S. tap water
40 public water systems across 7 U.S. states report Dibromoacetic acid in their annual Consumer Confidence Report. 1 sit at or above the federal limit.
What it is
A brominated haloacetic acid disinfection byproduct.
Why it's regulated
Part of the broader HAA9 group; monitored without its own enforceable limit.
At or above the federal limit (1)
| Water system | Measured | vs. limit |
|---|---|---|
| Omaha, NE 2024 annual report | 1.53 mg/L | 25.5× the limit |
Within the federal limit (39)
Frequently asked
+What is Dibromoacetic acid?
A brominated haloacetic acid disinfection byproduct. Part of the broader HAA9 group; monitored without its own enforceable limit.
+What is the federal limit for Dibromoacetic acid in drinking water?
The federal MCL for Dibromoacetic acid is 60 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 Dibromoacetic acid over the federal limit?
1 of the 40 public water systems on The Water Map report Dibromoacetic acid at or above its federal limit, spanning 7 U.S. states. The full list is on this page.
+How can I check if Dibromoacetic acid 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 Dibromoacetic acid.