Bromochloromethane
Arlington Water Department
NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for bromochloromethane. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.
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 | ND | 8 | 0 | ND |
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 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
NOTE: Arlington Water Department purchases water from SNO PUD 1 - Lake Stevens which is required to test for bromochloromethane. Sample information shown below was taken by SNO PUD 1 - Lake Stevens.
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-22 | WA97-SE1-14-01298-3400 | ND |
| 2014-04-15 | WA97-SE2-14-06585-15943 | ND |
| 2014-04-16 | 97-SE1-14-06586-15945 | ND |
| 2014-07-22 | WA97-SE3-14-13616-31731 | ND |
| 2014-10-27 | WA97-SE4-14-21143-47786 | ND |
| 2014-10-28 | WA98-SE2-14-21311-48224 | ND |
| 2019-11-14 | ND | |
| 2019-11-14 | ND | |
| 2022-05-23 | 4286327 | ND |
| 2022-05-23 | 4286326 | ND |