Chlorodibromoacetic acid
Andrew County Public Water Supply District 3
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.
40
Samples
0
Samples exceeding legal limit (MCL)
26
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 2.27 ppb | 6 | 3 | ND - 9.55 ppb |
| 2015 | 7.12 ppb | 8 | 6 | ND - 10.5 ppb |
| 2016 | 1.15 ppb | 8 | 4 | ND - 4.09 ppb |
| 2017 | 1.17 ppb | 8 | 5 | ND - 2.21 ppb |
| 2018 | 5.99 ppb | 4 | 4 | 3.95 ppb - 8.10 ppb |
| 2019 | 2.37 ppb | 6 | 4 | ND - 5.36 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 |
|---|---|---|
| 2014-06-17 | AC28552 | 1.89 ppb |
| 2014-06-17 | AC28551 | 2.17 ppb |
| 2014-09-16 | AC35588 | 9.55 ppb |
| 2014-09-16 | AC35589 | ND |
| 2014-12-10 | AC39473 | ND |
| 2014-12-10 | AC39474 | ND |
| 2015-03-10 | AC43553 | 9.66 ppb |
| 2015-03-10 | AC43554 | 9.32 ppb |
| 2015-06-17 | AC51193 | ND |
| 2015-06-17 | AC51194 | ND |
| 2015-09-10 | AC59488 | 9.08 ppb |
| 2015-09-10 | AC59489 | 8.52 ppb |
| 2015-12-21 | AC63924 | 10.5 ppb |
| 2015-12-21 | AC63925 | 9.84 ppb |
| 2016-03-11 | AC67623 | ND |
| 2016-03-11 | AC67622 | ND |
| 2016-06-15 | AC74844 | 2.04 ppb |
| 2016-06-15 | AC74843 | 4.09 ppb |
| 2016-09-09 | AC83797 | 1.64 ppb |
| 2016-09-09 | AC83796 | 1.40 ppb |
| 2016-12-07 | AC88428 | ND |
| 2016-12-07 | AC88429 | ND |
| 2017-03-21 | AC92119 | ND |
| 2017-03-21 | AC92120 | ND |
| 2017-06-20 | AC98436 | ND |
| 2017-06-20 | AC98437 | 1.19 ppb |
| 2017-09-13 | AD06423 | 2.21 ppb |
| 2017-09-13 | AD06424 | 1.76 ppb |
| 2017-12-12 | AD10589 | 2.15 ppb |
| 2017-12-12 | AD10588 | 2.01 ppb |
| 2018-03-14 | AD16466 | 7.91 ppb |
| 2018-03-14 | AD16467 | 8.10 ppb |
| 2018-06-25 | AD27259 | 4.01 ppb |
| 2018-06-25 | AD27260 | 3.95 ppb |
| 2019-06-18 | AD49068 | ND |
| 2019-06-18 | AD49069 | 3.26 ppb |
| 2019-09-18 | AD56380 | 4.52 ppb |
| 2019-09-18 | AD56381 | 5.36 ppb |
| 2019-12-12 | AD59078 | ND |
| 2019-12-12 | AD59079 | 1.10 ppb |