Chlorodibromoacetic acid
Ralls County Public Water Supply District 1
Chlorodibromoacetic 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.
48
Samples
0
Samples exceeding legal limit (MCL)
6
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.170 ppb | 8 | 1 | ND - 1.36 ppb |
| 2015 | ND | 8 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 8 | 0 | ND |
| 2018 | 0.160 ppb | 8 | 1 | ND - 1.28 ppb |
| 2019 | 1.85 ppb | 8 | 4 | ND - 4.47 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.02 ppb
The EWG Health Guideline of 0.02 ppb for chlorodibromoacetic 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 |
|---|---|---|
| 2014-02-13 | AC18152 | ND |
| 2014-02-13 | AC18151 | ND |
| 2014-05-21 | AC23160 | ND |
| 2014-05-21 | AC23159 | ND |
| 2014-09-15 | AC36057 | 1.36 ppb |
| 2014-09-15 | AC36058 | ND |
| 2014-11-20 | AC38205 | ND |
| 2014-11-20 | AC38206 | ND |
| 2015-02-19 | AC41931 | ND |
| 2015-02-19 | AC41932 | ND |
| 2015-05-18 | AC46507 | ND |
| 2015-05-18 | AC46508 | ND |
| 2015-08-20 | AC57356 | ND |
| 2015-08-20 | AC57355 | ND |
| 2015-11-23 | AC62774 | ND |
| 2015-11-23 | AC62773 | ND |
| 2016-02-24 | AC66317 | ND |
| 2016-02-24 | AC66318 | ND |
| 2016-05-25 | AC72010 | ND |
| 2016-05-25 | AC72011 | ND |
| 2016-09-21 | AC83926 | ND |
| 2016-09-21 | AC83925 | ND |
| 2016-11-17 | AC86910 | ND |
| 2016-11-28 | AC88170 | ND |
| 2017-02-21 | AC90774 | ND |
| 2017-02-21 | AC90773 | ND |
| 2017-05-17 | AC95744 | ND |
| 2017-05-17 | AC95745 | ND |
| 2017-08-16 | AD03333 | ND |
| 2017-08-16 | AD03332 | ND |
| 2017-11-29 | AD09458 | ND |
| 2017-11-29 | AD09459 | ND |
| 2018-02-27 | AD14244 | 1.28 ppb |
| 2018-03-05 | AD17504 | ND |
| 2018-04-19 | AD18055 | ND |
| 2018-04-19 | AD18056 | ND |
| 2018-09-17 | AD31152 | ND |
| 2018-09-17 | AD31153 | ND |
| 2018-12-14 | AD35687 | ND |
| 2018-12-14 | AD35688 | ND |
| 2019-03-12 | AD39356 | ND |
| 2019-03-12 | AD39355 | ND |
| 2019-05-15 | AD47436 | ND |
| 2019-05-15 | AD47437 | ND |
| 2019-10-02 | AD53423 | 3.51 ppb |
| 2019-10-02 | AD53424 | 3.16 ppb |
| 2019-12-17 | AD58062 | 3.63 ppb |
| 2019-12-17 | AD58063 | 4.47 ppb |