Know Your Environment. Protect Your Health.

Bromodichloromethane

Collierville Water Department

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND20ND
2020N/A00N/A
20210.332 ppb51ND - 1.66 ppb
2022ND110ND
2023ND100ND

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 Result
2019-04-15ND
2019-04-15ND
2021-03-18ND
2021-03-18ND
2021-03-18ND
2021-10-251.66 ppb
2021-10-25ND
2022-04-20ND
2022-04-20ND
2022-08-11ND
2022-08-11ND
2022-08-11ND
2022-10-17ND
2022-10-17ND
2022-10-19ND
2022-10-19ND
2022-10-19ND
2022-10-19ND
2023-09-13ND
2023-09-13ND
2023-09-13ND
2023-09-13ND
2023-10-16ND
2023-10-16ND
2023-10-17ND
2023-10-17ND
2023-12-11ND
2023-12-11ND