Know Your Environment. Protect Your Health.

Bromodichloromethane

Harris County Municipal Utility District 23

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

40

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.75 ppb107ND - 6.90 ppb
20192.59 ppb107ND - 9.80 ppb
20206.88 ppb85ND - 16.0 ppb
20212.93 ppb105ND - 8.40 ppb
20225.53 ppb993.40 ppb - 9.10 ppb
20235.14 ppb107ND - 9.40 ppb

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
2018-02-08AE130096.80 ppb
2018-02-08AE130716.00 ppb
2018-02-08AE13075ND
2018-02-08AE130086.80 ppb
2018-05-10AE25902ND
2018-05-10AE25911ND
2018-08-13AE365905.80 ppb
2018-08-13AE365936.90 ppb
2018-11-30AE475571.70 ppb
2018-11-30AE475653.50 ppb
2019-02-25AE556351.30 ppb
2019-02-25AE556361.10 ppb
2019-02-25AE55689ND
2019-04-22AE63122ND
2019-04-22AE631591.40 ppb
2019-07-23AE755051.10 ppb
2019-07-23AE75507ND
2019-11-19AE897665.60 ppb
2019-11-19AE897675.60 ppb
2019-11-19AE897939.80 ppb
2020-03-11AF0222216.0 ppb
2020-03-11AF0222313.9 ppb
2020-03-11AF0225815.0 ppb
2020-03-11AF022628.40 ppb
2020-05-27AF12856ND
2020-05-27AF128661.70 ppb
2020-10-23AF31856ND
2020-10-23AF31857ND
2021-01-13AF391067.50 ppb
2021-01-13AF391465.70 ppb
2021-01-13AF391078.40 ppb
2021-01-13AF39144ND
2021-04-05AF48937ND
2021-04-05AF48953ND
2021-09-01AF68534ND
2021-09-01AF68535ND
2021-10-13AF733174.10 ppb
2021-10-13AF733183.60 ppb
2022-01-25AF815764.00 ppb
2022-01-25AF815793.80 ppb
2022-01-25AF816643.40 ppb
2022-04-19AF936465.90 ppb
2022-04-19AF936475.40 ppb
2022-09-07AG118265.50 ppb
2022-09-07AG118295.90 ppb
2022-11-21AG193936.80 ppb
2022-11-21AG193969.10 ppb
2023-01-17AG246355.70 ppb
2023-01-17AG246405.80 ppb
2023-01-17AG247424.70 ppb
2023-04-06AG358009.10 ppb
2023-04-06AG358049.40 ppb
2023-04-06AG35822ND
2023-08-22AG534568.50 ppb
2023-08-22AG534648.20 ppb
2023-11-06AG62331ND
2023-11-06AG62334ND