Know Your Environment. Protect Your Health.

Bromodichloromethane

Champlin

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.650 ppb220.600 ppb - 0.700 ppb
20190.950 ppb220.800 ppb - 1.10 ppb
20200.800 ppb220.700 ppb - 0.900 ppb
2021ND20ND
20225.55 ppb225.20 ppb - 5.90 ppb
20231.85 ppb221.60 ppb - 2.10 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
2018-04-0218D0057-010.700 ppb
2018-04-0218D0057-020.600 ppb
2019-04-0119D0089-011.10 ppb
2019-04-0119D0089-020.800 ppb
2020-04-0620D0110-010.900 ppb
2020-04-0620D0110-020.700 ppb
2021-04-1221D0610-01ND
2021-04-1221D0610-02ND
2022-04-0522D0247-015.90 ppb
2022-04-0522D0247-025.20 ppb
2023-04-0523D0300-012.10 ppb
2023-04-0523D0300-021.60 ppb