Know Your Environment. Protect Your Health.

Bromodichloromethane

Galva, City of

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.20 ppb111.20 ppb
20190.700 ppb110.700 ppb
20200.510 ppb110.510 ppb
2021ND10ND
2022ND10ND
20230.640 ppb110.640 ppb

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
2018-08-1410254451.20 ppb
2019-08-1212221800.700 ppb
2020-08-1714951120.510 ppb
2021-08-161918439ND
2022-08-082327802ND
2023-10-0325863030.640 ppb