Know Your Environment. Protect Your Health.

Dibromochloromethane

Bristol Waterworks Village Of

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20190.800 ppb110.800 ppb
20201.04 ppb330.510 ppb - 1.70 ppb
20210.390 ppb110.390 ppb
20220.600 ppb110.600 ppb
20230.610 ppb110.610 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 Lab ID Result
2018-08-151074196ND
2019-08-2111426910.800 ppb
2020-04-0611811500.510 ppb
2020-04-0611811440.900 ppb
2020-08-1112063091.70 ppb
2021-08-1112709220.390 ppb
2022-08-0313279280.600 ppb
2023-08-08CB09340-010.610 ppb