Know Your Environment. Protect Your Health.

Bromodichloromethane

Quint-mar Water Authority

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
20190.326 ppb64ND - 0.599 ppb
20204.05 ppb114.05 ppb
2021N/A00N/A
20221.66 ppb76ND - 5.35 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
2019-02-05AB328140.397 ppb
2019-02-05AB328150.396 ppb
2019-02-05AB32816ND
2019-02-05AB32817ND
2019-02-05AB328180.565 ppb
2019-04-17AB342890.599 ppb
2020-07-20AB434804.05 ppb
2022-07-20AB604125.07 ppb
2022-07-20AB604135.35 ppb
2022-07-20AB604140.515 ppb
2022-07-20AB604150.0373 ppb
2022-07-20AB60416ND
2022-07-20AB604170.0329 ppb
2022-07-20AB604180.617 ppb