Disinfection byproducts
Bromoform in U.S. tap water
49 public water systems across 10 U.S. states report Bromoform in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
What it is
A trihalomethane disinfection byproduct.
Why it's regulated
Counted within regulated total trihalomethanes; long-term exposure is associated with liver and kidney effects.
Within the federal limit (14)
| Water system | Measured |
|---|---|
| Chowchilla City Water Dept — Chowchilla, Ca, CA 2021 annual report | Not detected ug/L |
| City of Hampton, VA 2024 annual report | Not detected ug/L |
| City of Newport News, VA 2025 annual report | Not detected ug/L |
| City of Poquoson, VA 2024 annual report | Not detected ug/L |
| City of Poquoson, VA 2025 annual report | Not detected ug/L |
| Dayton, OH 2024 annual report | Not detected ug/L |
| Fort Worth, TX 2024 annual report | 0 ug/L |
| Glen Meadow Retirement Community, MD 2024 annual report | Not detected ug/L |
| Hampton, VA 2025 annual report | Not detected ug/L |
| James City County, VA 2025 annual report | Not detected ug/L |
| Nashville, TN 2023 annual report | Not detected |
| Newport News, VA 2024 annual report | Not detected ug/L |
| West Jordan, UT 2024 annual report | Not detected ug/L |
| York County, VA 2024 annual report | Not detected ug/L |
Frequently asked
+What is Bromoform?
A trihalomethane disinfection byproduct. Counted within regulated total trihalomethanes; long-term exposure is associated with liver and kidney effects.
+What is the federal limit for Bromoform in drinking water?
The federal Public health goal for Bromoform is 0.5 . 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 Bromoform over the federal limit?
Zero of the 49 public water systems in The Water Map dataset currently report Bromoform at or above its federal limit.
+How can I check if Bromoform 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 Bromoform.