Bromochloromethane
Northcrest Addition
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 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-09-11 | Q1836165002 | ND |
| 2018-09-11 | Q1836165003 | ND |
| 2019-10-21 | Q1973080001 | ND |
| 2019-10-21 | Q1973080003 | ND |
| 2020-10-13 | Q2040353001 | ND |
| 2020-10-13 | Q2040353003 | ND |
| 2021-10-07 | Q2127873005 | ND |
| 2021-10-07 | Q2127873007 | ND |
| 2022-10-17 | Q2231506006 | ND |
| 2022-10-17 | Q2231506008 | ND |
| 2023-05-22 | Q2319066001 | ND |
| 2023-05-22 | Q2319066003 | ND |