Know Your Environment. Protect Your Health.

Bromochloromethane

Glencoe Water Works Board

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

2

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
2018ND20ND
2019ND20ND
2020ND30ND
20210.500 ppb220.500 ppb
2022ND20ND
2023ND30ND

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
2018-02-051802-00039-3ND
2018-02-051802-00039-5ND
2019-03-121903-00245-002ND
2019-03-121903-00245-004ND
2020-02-172002-00306-002ND
2020-02-172002-00306-004ND
2020-02-172002-00306-006ND
2021-02-222102-00357-0030.500 ppb
2021-02-222102-00357-0080.500 ppb
2022-02-172202-00348-003ND
2022-02-172202-00348-005ND
2023-01-302301-00501-002ND
2023-01-302301-00501-004ND
2023-01-302301-00501-006ND