Bromochloromethane
Utrwd Regional Water Treatment Plant
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 |
|---|---|---|
| 2018-09-13 | Q1836570001 | ND |
| 2018-09-25 | Q1838256005 | ND |
| 2019-09-26 | Q1969362002 | ND |
| 2019-09-27 | Q1970279005 | ND |
| 2020-08-18 | Q2032859002 | ND |
| 2020-08-18 | Q2032859004 | ND |
| 2021-09-27 | Q2126305003 | ND |
| 2021-09-27 | Q2126305005 | ND |
| 2022-09-15 | Q2227673003 | ND |
| 2022-09-15 | Q2227673005 | ND |
| 2023-08-02 | Q2331445001 | ND |
| 2023-08-02 | Q2331445003 | ND |