National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Chlorodibromoacetic acid
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Chlorodibromoacetic acid is a disinfection byproduct that forms when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 3 |
- |
- |
| Water utilities | 224 |
- |
- |
| People Served | 2,504,969 |
- |
- |
Chlorodibromoacetic acid Exposure by State
Water utilities in 3 states have reported detecting Chlorodibromoacetic 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 Chlorodibromoacetic acid contamination | |
|---|---|---|
| Systems | Population | |
| Missouri | 222 | 1,483,247 |
| New York | 1 | 1,009,264 |
| Maryland | 1 | 12,458 |
| Total | 224 | 2,504,969 |
The Most Polluted Communities
224 water utilities reported detecting Chlorodibromoacetic acid in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Chlorodibromoacetic acid level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Barnard Barnard, MO | 257 | 5 of 9 | 6 ppb (0 to 41.9 ppb) |
| 2 | Chaffee Chaffee, MO | 3,059 | 3 of 5 | 4.59 ppb (0 to 10.37 ppb) |
| 3 | Miami Miami, MO | 140 | 4 of 7 | 4.03 ppb (0 to 8.68 ppb) |
| 4 | Sweet Springs Sweet Springs, MO | 1,694 | 9 of 13 | 3.64 ppb (0 to 9.75 ppb) |
| 5 | Blackwater Blackwater, MO | 290 | 3 of 7 | 3.57 ppb (0 to 11.1 ppb) |
| 6 | Saline Co Pwsd #3 Marshall, MO | 2,600 | 7 of 12 | 3.12 ppb (0 to 7.14 ppb) |
| 7 | Butler Co Pwsd #104 MO | 25 | 2 of 6 | 3.07 ppb (0 to 12.9 ppb) |
| 8 | Blairstown Blairstown, MO | 185 | 6 of 12 | 2.81 ppb (0 to 9.59 ppb) |
| 9 | Mount Leonard Malta Bend, MO | 100 | 5 of 9 | 2.61 ppb (0 to 7.21 ppb) |
| 10 | Howard Co Cons Pwsd #1 Franklin, MO | 1,835 | 3 of 5 | 2.45 ppb (0 to 6.38 ppb) |
Testing Summary for Chlorodibromoacetic acid
| Are tests routinely required for Chlorodibromoacetic acid by federal law? | No |
| Water suppliers reporting tests for Chlorodibromoacetic acid (2004-2009): | 932 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2009): | 1.0 per year |