Tribromoacetic acid
Audrain County Public Water Supply District 2
Tribromoacetic acid is formed when chlorine or other disinfectants are used to treat drinking water. Disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.
7
Samples
0
Samples exceeding legal limit (MCL)
1
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 1.89 ppb | 2 | 1 | ND - 3.78 ppb |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.04 ppb
The EWG Health Guideline of 0.04 ppb for tribromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-21 | AC33206 | 3.78 ppb |
| 2014-08-21 | AC33207 | ND |
| 2015-08-24 | AC57340 | ND |
| 2016-08-18 | AC81591 | ND |
| 2017-08-14 | AD03311 | ND |
| 2018-08-15 | AD31131 | ND |
| 2019-08-27 | AD53856 | ND |