Know Your Environment. Protect Your Health.

Bromodichloromethane

Mary Francis Subdivision

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
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 bromodichloromethane was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-21AE19340ND
2018-08-06AE35788ND
2018-08-06AE35858ND
2019-05-07AE65123ND
2019-05-07AE65192ND
2019-05-07AE65206ND
2020-05-06AF09639ND
2020-05-06AF09700ND
2020-05-06AF09732ND
2021-08-03AF64406ND
2021-08-03AF64485ND
2021-08-03AF64475ND
2022-08-24AG10735ND
2022-10-19AG17644ND
2022-10-19AG17646ND
2023-05-23AG41579ND
2023-05-23AG41639ND
2023-05-23AG41641ND