Know Your Environment. Protect Your Health.

Dibromochloromethane

Riverbridge

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.

 

43

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.140 ppb51ND - 0.700 ppb
20190.0875 ppb162ND - 0.900 ppb
2020ND50ND
2021ND50ND
20220.280 ppb51ND - 1.40 ppb
20231.47 ppb73ND - 5.60 ppb

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 Result
2018-12-190.700 ppb
2018-12-19ND
2018-12-19ND
2018-12-19ND
2018-12-19ND
2019-01-10ND
2019-01-10ND
2019-01-10ND
2019-01-10ND
2019-02-250.900 ppb
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-02-26ND
2019-04-05ND
2019-04-05ND
2019-04-05ND
2019-04-05ND
2019-04-050.500 ppb
2019-08-22ND
2019-10-22ND
2020-05-26ND
2020-05-26ND
2020-05-26ND
2020-05-26ND
2020-05-26ND
2021-06-02ND
2021-06-02ND
2021-06-02ND
2021-06-02ND
2021-06-02ND
2022-04-221.40 ppb
2022-04-22ND
2022-04-22ND
2022-04-22ND
2022-04-22ND
2023-04-05ND
2023-04-05ND
2023-04-05ND
2023-04-051.60 ppb
2023-04-05ND
2023-08-295.60 ppb
2023-08-293.10 ppb