Inorganic chemicals
Monobromoacetic acid in U.S. tap water
23 public water systems across 6 U.S. states report Monobromoacetic acid in their annual Consumer Confidence Report. None currently 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.
Within the federal limit (23)
Frequently asked
+What is Monobromoacetic 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 Monobromoacetic acid in drinking water?
The federal MCL for Monobromoacetic 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 Monobromoacetic acid over the federal limit?
Zero of the 23 public water systems in The Water Map dataset currently report Monobromoacetic acid at or above its federal limit.
+How can I check if Monobromoacetic 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 Monobromoacetic acid.