Bromochloromethane
Ruston Water System
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 | 0.0765 ppb | 17 | 4 | ND - 0.990 ppb |
| 2015 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2014-05-01 | 3019267 | 0.990 ppb |
| 2014-05-01 | 3019359 | ND |
| 2014-05-01 | 3019293 | ND |
| 2014-05-01 | 3019327 | ND |
| 2014-05-01 | 3019241 | 0.180 ppb |
| 2014-05-01 | 3019346 | ND |
| 2014-05-02 | 3019228 | ND |
| 2014-05-02 | 3019280 | ND |
| 2014-05-02 | 3019254 | ND |
| 2014-11-11 | 3137901 | ND |
| 2014-11-11 | 3138200 | ND |
| 2014-11-11 | 3138087 | ND |
| 2014-11-11 | 3137991 | ND |
| 2014-11-11 | 3138348 | 0.0700 ppb |
| 2014-11-11 | 3138165 | ND |
| 2014-11-11 | 3138322 | 0.0600 ppb |
| 2014-11-11 | 3138298 | ND |
| 2015-01-12 | 3168379 | ND |