Bromochloromethane
Emerald Lakes Subdivision
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-09-21 | AE41289 | ND |
| 2018-09-21 | AE41291 | ND |
| 2019-06-13 | AE70595 | ND |
| 2019-06-13 | AE70605 | ND |
| 2020-11-16 | AF34617 | ND |
| 2020-11-16 | AF34619 | ND |
| 2021-04-21 | AF50923 | ND |
| 2021-04-21 | AF50933 | ND |
| 2022-03-08 | AF88104 | ND |
| 2022-03-08 | AF88114 | ND |
| 2022-06-01 | AF99085 | ND |
| 2022-09-06 | AG11654 | ND |
| 2023-09-14 | AG56330 | ND |
| 2023-09-14 | AG56334 | ND |