Know Your Environment. Protect Your Health.

Dibromochloromethane

Harris County Municipal Utility District 58

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.40 ppb21ND - 2.80 ppb
2019ND20ND
20200.500 ppb21ND - 1.000 ppb
2021ND20ND
20220.900 ppb21ND - 1.80 ppb
20232.70 ppb21ND - 5.40 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
2018-05-09AE258842.80 ppb
2018-05-09AE25933ND
2019-08-07AE77406ND
2019-08-07AE77515ND
2020-07-28AF208651.000 ppb
2020-07-28AF20924ND
2021-06-21AF58823ND
2021-10-18AF73772ND
2022-09-28AG152091.80 ppb
2022-09-28AG15264ND
2023-08-21AG532585.40 ppb
2023-08-21AG53299ND