Bromochloromethane
Chisholm Hills Estates
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 | 2 | 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 |
|---|---|---|
| 2018-09-18 | Q1837077001 | ND |
| 2018-09-18 | Q1837077003 | ND |
| 2019-05-21 | Q1927166003 | ND |
| 2019-05-21 | Q1927166005 | ND |
| 2020-11-18 | Q2045746001 | ND |
| 2020-11-18 | Q2045746003 | ND |
| 2021-06-29 | Q2116975009 | ND |
| 2021-06-29 | Q2116975011 | ND |
| 2022-11-15 | Q2234333005 | ND |
| 2022-11-15 | Q2234333007 | ND |
| 2023-07-20 | Q2328725003 | ND |
| 2023-09-06 | Q2338462001 | ND |