Know Your Environment. Protect Your Health.

Bromochloromethane

Ayer DPW Water Division

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019ND100ND
2020ND80ND
2021ND90ND
2022ND20ND
2023ND70ND

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 Result
2018-06-13ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2018-08-14ND
2019-03-05ND
2019-03-05ND
2019-09-19ND
2019-09-19ND
2019-09-19ND
2019-09-19ND
2019-09-19ND
2019-09-19ND
2019-09-19ND
2019-12-10ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2020-07-07ND
2021-08-06ND
2021-08-06ND
2021-08-06ND
2021-08-06ND
2021-08-06ND
2021-08-06ND
2021-08-06ND
2021-10-19ND
2021-12-02ND
2022-01-19ND
2022-04-25ND
2023-05-02ND
2023-07-27ND
2023-08-07ND
2023-08-07ND
2023-08-07ND
2023-08-07ND
2023-08-07ND