Know Your Environment. Protect Your Health.

Bromodichloromethane

Harris County Municipal Utility District 62

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane 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
2018ND10ND
2019ND10ND
20200.933 ppb31ND - 2.80 ppb
20212.87 ppb32ND - 4.80 ppb
20220.750 ppb21ND - 1.50 ppb
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-06-12AE29457ND
2019-05-02AE64584ND
2020-05-13AF10944ND
2020-09-21AF279372.80 ppb
2020-11-05AF33468ND
2021-03-09AF460403.80 ppb
2021-04-20AF507224.80 ppb
2021-06-11AF57732ND
2022-06-08AF99989ND
2022-06-08AG000201.50 ppb
2023-06-12AG43970ND
2023-06-12AG43991ND