Bromochloromethane
Bethany Special Utility District
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 | 0.0324 ppb | 33 | 8 | ND - 0.307 ppb |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-03-06 | Q1809125004 | ND |
| 2018-03-06 | Q1809125005 | ND |
| 2018-03-06 | Q1809125014 | ND |
| 2018-03-06 | Q1809125015 | ND |
| 2018-03-06 | Q1809125001 | ND |
| 2019-02-07 | Q1905767006 | ND |
| 2019-02-07 | Q1905767012 | ND |
| 2019-02-07 | Q1905767015 | ND |
| 2019-02-07 | Q1905767017 | ND |
| 2019-12-10 | Q1979572001 | ND |
| 2020-08-05 | Q2030902007 | ND |
| 2020-08-05 | Q2030902009 | ND |
| 2020-08-05 | Q2030902011 | ND |
| 2020-10-14 | Q2040367005 | ND |
| 2020-10-14 | Q2040367007 | ND |
| 2021-06-24 | Q2116591012 | ND |
| 2021-06-24 | Q2116591014 | ND |
| 2021-06-24 | Q2116591016 | ND |
| 2021-06-24 | Q2116591018 | ND |
| 2022-10-19 | Q2231823001 | ND |
| 2022-10-19 | Q2231823003 | ND |
| 2022-10-19 | Q2231823005 | ND |
| 2022-10-19 | Q2231823007 | ND |
| 2023-11-06 | Q2347450007 | ND |
| 2023-11-06 | Q2347450009 | ND |
| 2023-11-06 | Q2347450011 | ND |
| 2023-11-06 | Q2347450022 | ND |