Know Your Environment. Protect Your Health.

Bromochloromethane

North Peninsula

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND10ND
2014ND40ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND10ND
2020N/A00N/A
2021ND20ND
2022ND20ND
2023ND20ND

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
2013-09-09201304728ND
2014-03-25201401150ND
2014-03-25201401152ND
2014-03-25201401148ND
2014-03-25201401154ND
2015-09-29201506099ND
2015-09-29201506100ND
2015-09-29201506098ND
2018-05-15ND
2018-05-21ND
2018-10-26ND
2019-06-11ND
2021-06-224142805ND
2021-08-234169117ND
2022-11-144382867ND
2022-11-154382872ND
2023-08-284514710ND
2023-08-284514708ND