Bromochloromethane
Paint Creek Water Supply Corporation
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 | 0.0805 ppb | 4 | 2 | ND - 0.195 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2015-04-06 | 113096R | ND |
| 2015-04-06 | 113097R | 0.127 ppb |
| 2015-06-10 | 113687P | ND |
| 2015-06-10 | 113688P | 0.195 ppb |
| 2018-03-21 | Q1811872005 | ND |
| 2019-05-21 | Q1927307006 | ND |
| 2020-03-10 | Q2009549003 | ND |
| 2021-09-07 | Q2124172005 | ND |
| 2022-05-25 | Q2215190001 | ND |
| 2023-05-16 | Q2318412004 | ND |