Monobromoacetic acid
University of New Mexico
Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.235 ppb | 4 | 4 | 0.140 ppb - 0.310 ppb |
| 2015 | 0.233 ppb | 7 | 7 | 0.130 ppb - 0.340 ppb |
| 2016 | 0.0850 ppb | 16 | 4 | ND - 0.490 ppb |
| 2017 | 0.317 ppb | 16 | 7 | ND - 1.10 ppb |
| 2018 | 0.136 ppb | 12 | 2 | ND - 0.920 ppb |
| 2019 | 0.0694 ppb | 16 | 2 | ND - 0.560 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 25 ppb
The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-17 | 2014001714 | 0.310 ppb |
| 2014-04-15 | 2014012256 | 0.200 ppb |
| 2014-07-15 | 2014022282 | 0.290 ppb |
| 2014-10-16 | 2014032609 | 0.140 ppb |
| 2015-01-13 | 2015001371 | 0.130 ppb |
| 2015-04-13 | 2015011311 | 0.150 ppb |
| 2015-07-13 | 2015020012 | 0.300 ppb |
| 2015-10-13 | 2015030755 | 0.300 ppb |
| 2015-10-13 | 2015030758 | 0.190 ppb |
| 2015-10-13 | 2015030757 | 0.220 ppb |
| 2015-10-13 | 2015030756 | 0.340 ppb |
| 2016-01-11 | 2016000871 | 0.490 ppb |
| 2016-01-11 | 2016000873 | 0.330 ppb |
| 2016-01-11 | 2016000874 | 0.330 ppb |
| 2016-01-11 | 2016000872 | 0.210 ppb |
| 2016-04-19 | 2016011058 | ND |
| 2016-04-19 | 2016011060 | ND |
| 2016-04-19 | 2016011059 | ND |
| 2016-04-19 | 2016011057 | ND |
| 2016-07-13 | 2016020056 | ND |
| 2016-07-13 | 2016020057 | ND |
| 2016-07-13 | 2016020058 | ND |
| 2016-07-13 | 2016020055 | ND |
| 2016-10-17 | 2016030074 | ND |
| 2016-10-17 | 2016030075 | ND |
| 2016-10-17 | 2016030076 | ND |
| 2016-10-17 | 2016030073 | ND |
| 2017-01-10 | 2017000733 | 0.670 ppb |
| 2017-01-10 | 2017000734 | ND |
| 2017-01-10 | 2017000735 | ND |
| 2017-01-10 | 2017000736 | ND |
| 2017-04-05 | 2017009778 | 1.10 ppb |
| 2017-04-05 | 2017009776 | 0.520 ppb |
| 2017-04-05 | 2017009779 | ND |
| 2017-04-05 | 2017009777 | ND |
| 2017-07-11 | 2017019663 | ND |
| 2017-07-11 | 2017019664 | 0.950 ppb |
| 2017-07-11 | 2017019662 | 0.620 ppb |
| 2017-07-11 | 2017019661 | 0.530 ppb |
| 2017-10-10 | 2017029146 | 0.680 ppb |
| 2017-10-10 | 2017029144 | ND |
| 2017-10-10 | 2017029143 | ND |
| 2017-10-10 | 2017029145 | ND |
| 2018-04-04 | 2018009641 | ND |
| 2018-04-04 | 2018009640 | ND |
| 2018-04-04 | 2018009639 | ND |
| 2018-04-04 | 2018009638 | ND |
| 2018-07-09 | 2018018568 | ND |
| 2018-07-09 | 2018018565 | ND |
| 2018-07-09 | 2018018566 | ND |
| 2018-07-09 | 2018018567 | ND |
| 2018-10-01 | 2018028078 | 0.920 ppb |
| 2018-10-01 | 2018028079 | 0.710 ppb |
| 2018-10-01 | 2018028080 | ND |
| 2018-10-01 | 2018028081 | ND |
| 2019-01-10 | 2019000766 | ND |
| 2019-01-10 | 2019000767 | ND |
| 2019-01-10 | 2019000768 | ND |
| 2019-01-10 | 2019000769 | ND |
| 2019-04-04 | 2019008474 | ND |
| 2019-04-04 | 2019008475 | ND |
| 2019-04-04 | 2019008476 | ND |
| 2019-04-04 | 2019008477 | ND |
| 2019-07-02 | 2019018102 | ND |
| 2019-07-02 | 2019018104 | ND |
| 2019-07-02 | 2019018103 | 0.550 ppb |
| 2019-07-02 | 2019018101 | ND |
| 2019-10-02 | 2019028147 | ND |
| 2019-10-02 | 2019028146 | 0.560 ppb |
| 2019-10-02 | 2019028145 | ND |
| 2019-10-02 | 2019028144 | ND |