Monobromoacetic acid
Wheaton
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 | 1.56 ppb | 16 | 16 | 1.17 ppb - 1.84 ppb |
| 2015 | 1.41 ppb | 16 | 16 | 1.21 ppb - 1.64 ppb |
| 2016 | 0.849 ppb | 16 | 10 | ND - 1.52 ppb |
| 2017 | 0.719 ppb | 16 | 8 | ND - 1.69 ppb |
| 2018 | 0.225 ppb | 16 | 9 | ND - 0.524 ppb |
| 2019 | 0.561 ppb | 16 | 14 | ND - 1.000 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 |
|---|---|---|
| 2014-02-11 | 1402395-001B | 1.75 ppb |
| 2014-02-11 | 1402395-002B | 1.52 ppb |
| 2014-02-11 | 1402395-003B | 1.45 ppb |
| 2014-02-11 | 1402395-004B | 1.84 ppb |
| 2014-05-13 | 1405632-001B | 1.44 ppb |
| 2014-05-13 | 1405632-002B | 1.37 ppb |
| 2014-05-13 | 1405632-003B | 1.17 ppb |
| 2014-05-13 | 1405632-004B | 1.59 ppb |
| 2014-08-13 | 1408697-001B | 1.54 ppb |
| 2014-08-13 | 1408697-002B | 1.56 ppb |
| 2014-08-13 | 1408697-003B | 1.52 ppb |
| 2014-08-13 | 1408697-004B | 1.64 ppb |
| 2014-11-12 | 1411690-003B | 1.54 ppb |
| 2014-11-12 | 1411690-004B | 1.66 ppb |
| 2014-11-12 | 1411690-002B | 1.59 ppb |
| 2014-11-12 | 1411690-001B | 1.74 ppb |
| 2015-02-11 | 1502633-001B | 1.24 ppb |
| 2015-02-11 | 1502633-004B | 1.25 ppb |
| 2015-02-11 | 1502633-002B | 1.21 ppb |
| 2015-02-11 | 1502633-003B | 1.32 ppb |
| 2015-05-13 | 1505956-001B | 1.50 ppb |
| 2015-05-13 | 1505956-004B | 1.48 ppb |
| 2015-05-13 | 1505956-003B | 1.54 ppb |
| 2015-05-13 | 1505956-002B | 1.44 ppb |
| 2015-08-12 | 1508955-002B | 1.49 ppb |
| 2015-08-12 | 1508955-003B | 1.56 ppb |
| 2015-08-12 | 1508955-001B | 1.28 ppb |
| 2015-08-12 | 1508955-004B | 1.64 ppb |
| 2015-11-11 | 1511820-002B | 1.38 ppb |
| 2015-11-11 | 1511820-003B | 1.45 ppb |
| 2015-11-11 | 1511820-001B | 1.26 ppb |
| 2015-11-11 | 1511820-004B | 1.52 ppb |
| 2016-02-10 | 1602713-004B | 1.33 ppb |
| 2016-02-10 | 1602713-003B | 1.25 ppb |
| 2016-02-10 | 1602713-002B | 1.30 ppb |
| 2016-02-10 | 1602713-001B | 1.23 ppb |
| 2016-05-11 | 1605851-002B | 1.40 ppb |
| 2016-05-11 | 1605851-004B | 1.51 ppb |
| 2016-05-11 | 1605851-001B | 1.52 ppb |
| 2016-05-11 | 1605851-003B | 1.52 ppb |
| 2016-08-10 | 1608900-004B | ND |
| 2016-08-10 | 1608900-002B | 1.47 ppb |
| 2016-08-10 | 1608900-003B | ND |
| 2016-09-08 | 1609508-001A | ND |
| 2016-11-09 | 1611634-001B | ND |
| 2016-11-09 | 1611634-004B | ND |
| 2016-11-09 | 1611634-002B | 1.06 ppb |
| 2016-11-09 | 1611634-003B | ND |
| 2017-02-08 | 1702546-001B | 1.30 ppb |
| 2017-02-08 | 1702546-004B | 1.17 ppb |
| 2017-02-08 | 1702546-003B | 1.28 ppb |
| 2017-02-08 | 1702546-002B | 1.38 ppb |
| 2017-05-09 | 1705680-003B | 1.64 ppb |
| 2017-05-09 | 1705680-002B | 1.49 ppb |
| 2017-05-09 | 1705680-001B | 1.69 ppb |
| 2017-05-09 | 1705680-004B | 1.55 ppb |
| 2017-08-09 | 1708815-002B | ND |
| 2017-08-09 | 1708815-003B | ND |
| 2017-08-09 | 1708815-001B | ND |
| 2017-08-09 | 1708815-004B | ND |
| 2017-11-08 | 1711568-002B | ND |
| 2017-11-08 | 1711568-003B | ND |
| 2017-11-08 | 1711568-001B | ND |
| 2017-11-08 | 1711568-004B | ND |
| 2018-02-07 | 1802442-003B | ND |
| 2018-02-07 | 1802442-002B | ND |
| 2018-02-07 | 1802442-001B | ND |
| 2018-03-06 | 1803368-001A | 0.331 ppb |
| 2018-05-09 | 1805771-001B | 0.316 ppb |
| 2018-05-09 | 1805771-002B | ND |
| 2018-05-09 | 1805771-004B | 0.410 ppb |
| 2018-05-09 | 1805771-003B | ND |
| 2018-08-08 | 1808673-004B | ND |
| 2018-08-08 | 1808673-003B | ND |
| 2018-09-27 | 1809L47-002A | 0.524 ppb |
| 2018-09-27 | 1809L47-001A | 0.436 ppb |
| 2018-11-07 | 1811567-004B | 0.405 ppb |
| 2018-11-07 | 1811567-003B | 0.361 ppb |
| 2018-11-07 | 1811567-002B | 0.408 ppb |
| 2018-11-07 | 1811567-001B | 0.416 ppb |
| 2019-02-06 | 1902410-004B | 0.395 ppb |
| 2019-02-06 | 1902410-003B | 0.331 ppb |
| 2019-02-06 | 1902410-002B | 0.330 ppb |
| 2019-02-06 | 1902410-001B | 0.356 ppb |
| 2019-05-08 | 1905599-004B | 0.674 ppb |
| 2019-05-08 | 1905599-003B | 0.602 ppb |
| 2019-05-08 | 1905599-002B | 0.703 ppb |
| 2019-05-08 | 1905599-001B | 0.629 ppb |
| 2019-08-08 | 1908667-001B | 0.614 ppb |
| 2019-08-08 | 1908667-004B | ND |
| 2019-08-08 | 1908667-003B | ND |
| 2019-08-08 | 1908667-002B | 0.887 ppb |
| 2019-11-06 | 1911404-004B | 1.000 ppb |
| 2019-11-06 | 1911404-003B | 0.949 ppb |
| 2019-11-06 | 1911404-002B | 0.855 ppb |
| 2019-11-06 | 1911404-001B | 0.655 ppb |