Inorganic chemicals
Dichloroacetic acid in U.S. tap water
41 public water systems across 8 U.S. states report Dichloroacetic acid in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
What it is
A haloacetic acid disinfection byproduct.
Why it's regulated
One of the five haloacetic acids regulated together as HAA5 for cancer risk.
Within the federal limit (38)
Frequently asked
+What is Dichloroacetic acid?
A haloacetic acid disinfection byproduct. One of the five haloacetic acids regulated together as HAA5 for cancer risk.
+What is the federal limit for Dichloroacetic acid in drinking water?
The federal MCLG for Dichloroacetic acid is 0 . 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 Dichloroacetic acid over the federal limit?
Zero of the 41 public water systems in The Water Map dataset currently report Dichloroacetic acid at or above its federal limit.
+How can I check if Dichloroacetic 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 Dichloroacetic acid.