Know Your Environment. Protect Your Health.

Dibromochloromethane

Bellevue Municipal Utilities

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.700 ppb110.700 ppb
20190.890 ppb110.890 ppb
20200.730 ppb110.730 ppb
20210.680 ppb110.680 ppb
20220.480 ppb110.480 ppb
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-08-081H80907-010.700 ppb
2019-08-191H91571-010.890 ppb
2020-08-051H00438-010.730 ppb
2021-08-031EH0445-010.680 ppb
2022-08-221FH2462-010.480 ppb
2023-08-081GH1012-01ND