Bromochloromethane
South Saint Paul
Bromochloromethane is a tap water disinfection byproduct; it is also used as an intermediate in chemical manufacturing and as a fire extinguishing agent. Disinfection byproducts in drinking water increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | ND | 4 | 0 | ND |
| 2014 | ND | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.06 ppb
The EWG Health Guideline of 0.06 ppb for bromochloromethane was defined 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 cancer, harm to reproduction and child development, and change to fetal growth and development.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2013-12-18 | 1064638006 | ND |
| 2013-12-18 | 1064638003 | ND |
| 2013-12-18 | 1064638009 | ND |
| 2013-12-18 | 1064638012 | ND |
| 2014-06-03 | 2010352006 | ND |
| 2014-06-03 | 2010352003 | ND |
| 2014-06-03 | 2010352009 | ND |
| 2014-06-03 | 2010352012 | ND |
| 2018-01-03 | 18A0012-02 | ND |
| 2018-05-10 | 18E0892-01 | ND |
| 2018-08-24 | 18H2147-01 | ND |
| 2018-10-18 | 18J0909-01 | ND |
| 2019-01-14 | 19A0377-01 | ND |
| 2020-01-07 | 20A0142-01 | ND |
| 2020-08-13 | 20H0974-03 | ND |
| 2020-08-13 | 20H0974-02 | ND |
| 2020-08-13 | 20H0974-01 | ND |
| 2023-10-30 | 23J1666-03 | ND |
| 2023-10-30 | 23J1666-04 | ND |
| 2023-10-30 | 23J1666-05 | ND |
| 2023-10-30 | 23J1666-02 | ND |