Bromochloromethane
Glen of Robin Hood
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 |
|---|---|---|---|---|
| 2015 | ND | 10 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 3 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2015-05-20 | 113214P | ND |
| 2015-05-20 | 113215P | ND |
| 2015-05-20 | 113216P | ND |
| 2015-05-20 | 113217P | ND |
| 2015-05-20 | 113218P | ND |
| 2015-11-18 | 116035P | ND |
| 2015-11-18 | 116036P | ND |
| 2015-11-18 | 116037P | ND |
| 2015-11-18 | 116038P | ND |
| 2015-11-18 | 116039P | ND |
| 2020-08-31 | AK56912 | ND |
| 2020-08-31 | AK56913 | ND |
| 2020-08-31 | AK56914 | ND |
| 2023-10-09 | AL46940 | ND |
| 2023-10-09 | AL46941 | ND |
| 2023-10-09 | AL46942 | ND |