Know Your Environment. Protect Your Health.

Bromodichloromethane

Milburn 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
20191.87 ppb43ND - 3.62 ppb
2020ND10ND
2021N/A00N/A
20221.37 ppb111.37 ppb
2023N/A00N/A

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
2018-02-13E180101680ND
2018-06-11E180305884ND
2018-09-11E180605818ND
2018-09-11E180605819ND
2018-10-23E180900295ND
2019-01-29E181204240ND
2019-05-0119E0160-013.62 ppb
2019-08-2019H0902-011.67 ppb
2019-11-1819K0864-01-12.20 ppb
2020-02-2420B1053-01ND
2022-08-2522H1551-011.37 ppb