Know Your Environment. Protect Your Health.

Bromochloromethane

Harris County Municipal Utility District 23

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.00231 ppb521ND - 0.120 ppb
2014ND510ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND10ND
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
2018-02-08AE13071ND
2018-02-08AE13075ND
2019-02-25AE55689ND
2019-11-19AE89793ND
2020-03-11AF02258ND
2020-03-11AF02262ND
2021-01-13AF39144ND
2021-01-13AF39146ND
2022-01-25AF81664ND
2023-01-17AG24742ND
2023-04-06AG35822ND