Know Your Environment. Protect Your Health.

Dibromochloromethane

Northwest Harris County Municipal Utility District 24

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
20230.550 ppb21ND - 1.10 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
2018-08-14AE36818ND
2018-08-14AE36931ND
2019-08-13AE78563ND
2019-08-13AE78654ND
2020-06-10AF14808ND
2020-06-10AF14828ND
2021-09-21AF70602ND
2021-09-21AF70647ND
2022-08-24AG10769ND
2022-08-24AG10831ND
2023-08-03AG51260ND
2023-08-03AG513401.10 ppb