Chlorodibromoacetic acid
Holt 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.
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 | 3.06 ppb | 4 | 2 | ND - 8.36 ppb |
| 2015 | 0.285 ppb | 8 | 1 | ND - 2.28 ppb |
| 2016 | 2.78 ppb | 8 | 6 | ND - 5.89 ppb |
| 2017 | 1.91 ppb | 8 | 5 | ND - 5.44 ppb |
| 2018 | 5.24 ppb | 6 | 6 | 3.72 ppb - 7.23 ppb |
| 2019 | 2.64 ppb | 6 | 6 | 1.29 ppb - 3.16 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 |
|---|---|---|
| 2014-06-26 | AC29165 | 3.88 ppb |
| 2014-07-07 | AC30222 | 8.36 ppb |
| 2014-12-15 | AC39471 | ND |
| 2014-12-15 | AC39472 | ND |
| 2015-03-30 | AC44859 | ND |
| 2015-03-31 | AC44858 | ND |
| 2015-06-17 | AC51190 | ND |
| 2015-06-17 | AC51191 | ND |
| 2015-09-10 | AC59485 | ND |
| 2015-09-10 | AC59486 | 2.28 ppb |
| 2015-12-29 | AC63920 | ND |
| 2015-12-29 | AC63921 | ND |
| 2016-03-15 | AC67619 | ND |
| 2016-03-16 | AC67620 | ND |
| 2016-07-05 | AC74841 | 3.48 ppb |
| 2016-07-05 | AC74840 | 2.86 ppb |
| 2016-09-19 | AC83791 | 2.41 ppb |
| 2016-09-19 | AC83792 | 2.51 ppb |
| 2016-12-21 | AC88426 | 5.89 ppb |
| 2016-12-21 | AC88425 | 5.05 ppb |
| 2017-03-15 | AC92117 | ND |
| 2017-03-15 | AC92116 | ND |
| 2017-06-26 | AC98434 | ND |
| 2017-06-26 | AC98433 | 5.44 ppb |
| 2017-09-13 | AD06420 | 1.52 ppb |
| 2017-09-13 | AD06421 | 2.20 ppb |
| 2017-12-19 | AD10585 | 4.52 ppb |
| 2017-12-19 | AD10586 | 1.63 ppb |
| 2018-03-26 | AD16463 | 7.19 ppb |
| 2018-03-26 | AD16464 | 7.23 ppb |
| 2018-06-19 | AD27256 | 3.84 ppb |
| 2018-06-19 | AD27257 | 4.08 ppb |
| 2018-09-18 | AD32894 | 3.72 ppb |
| 2018-09-18 | AD32895 | 5.40 ppb |
| 2019-03-27 | AD40495 | 3.07 ppb |
| 2019-03-27 | AD40494 | 2.62 ppb |
| 2019-06-24 | AD49065 | 2.78 ppb |
| 2019-06-24 | AD49066 | 2.89 ppb |
| 2019-09-17 | AD55163 | 3.16 ppb |
| 2019-09-17 | AD55162 | 1.29 ppb |