National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Tribromoacetic acid
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Tribromoacetic acid is a haloacetic acid and an unregulated byproduct of tap water disinfection using ozonation.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 2 |
- |
- |
| Water utilities | 69 |
- |
- |
| People Served | 1,486,284 |
- |
- |
Health Concerns for Tribromoacetic acid:
Tribromoacetic acid Exposure by State
Water utilities in 2 states have reported detecting Tribromoacetic acid in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Tribromoacetic acid contamination | |
|---|---|---|
| Systems | Population | |
| New York | 2 | 1,009,264 |
| Missouri | 67 | 477,020 |
| Total | 69 | 1,486,284 |
The Most Polluted Communities
69 water utilities reported detecting Tribromoacetic acid in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Tribromoacetic acid level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Metropolitan Water Board Clay, NY | 0 | 1 of 1 | 8 ppb (8 ppb) |
| 2 | Barnard Barnard, MO | 257 | 1 of 9 | 7.28 ppb (0 to 65.5 ppb) |
| 3 | Blairstown Blairstown, MO | 185 | 4 of 12 | 1.99 ppb (0 to 6.37 ppb) |
| 4 | North Central MO Regional Water Com MO | 25 | 2 of 10 | 0.99 ppb (0 to 8.2 ppb) |
| 5 | Howard Co Cons Pwsd #1 Franklin, MO | 1,835 | 2 of 5 | 0.95 ppb (0 to 3.78 ppb) |
| 6 | Tina Tina, MO | 198 | 1 of 7 | 0.68 ppb (0 to 4.78 ppb) |
| 7 | Stoddard Co Pwsd #4 Dexter, MO | 1,410 | 1 of 7 | 0.61 ppb (0 to 4.25 ppb) |
| 8 | Blackwater Blackwater, MO | 290 | 1 of 7 | 0.55 ppb (0 to 3.83 ppb) |
| 9 | Chaffee Chaffee, MO | 3,059 | 1 of 5 | 0.54 ppb (0 to 2.72 ppb) |
| 10 | Sweet Springs Sweet Springs, MO | 1,694 | 1 of 13 | 0.42 ppb (0 to 5.43 ppb) |
Testing Summary for Tribromoacetic acid
| Are tests routinely required for Tribromoacetic acid by federal law? | No |
| Water suppliers reporting tests for Tribromoacetic acid (2004-2009): | 932 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 1.0 per year |
Cancer
| Type of concern: | Reference: |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Environmental and Molecular Mutagenesis 2002 |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| RTECS®- Environmental and Molecular Mutagenesis 2002 | ACETIC ACID, TRIBROMO- | • mutagenic - Positive mutation assay: DNA Damage (hamster ovr) |
references
| government/industry list/academic study | reference |
| RTECS®- Environmental and Molecular Mutagenesis 2002 | RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 40,134,2002 |
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