Bromochloromethane
Western Allegheny County Mun A
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 |
|---|---|---|---|---|
| 2014 | 0.0817 ppb | 12 | 3 | ND - 0.410 ppb |
| 2015 | 0.0183 ppb | 4 | 1 | ND - 0.0730 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-06-11 | 201406130373AM | ND |
| 2014-06-11 | 201406130306AM | ND |
| 2014-06-11 | 201406130298AM | ND |
| 2014-06-12 | 201406130317AM | 0.220 ppb |
| 2014-09-10 | 201409120821AM | ND |
| 2014-09-10 | 201409120592AM | ND |
| 2014-09-10 | 201409120816AM | ND |
| 2014-09-10 | 201409120811AM | 0.350 ppb |
| 2014-12-10 | 201412120380AM | ND |
| 2014-12-10 | 201412120282AM | 0.410 ppb |
| 2014-12-10 | 201412120273AM | ND |
| 2014-12-11 | 201412120373AM | ND |
| 2015-03-11 | 201503130151AM | ND |
| 2015-03-11 | 201503120584AM | ND |
| 2015-03-11 | 201503120556AM | 0.0730 ppb |
| 2015-03-11 | 201503120566AM | ND |