Know Your Environment. Protect Your Health.

Bromodichloromethane

Harris County Municipal Utility District 344

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.240 ppb51ND - 1.20 ppb
20190.720 ppb53ND - 1.30 ppb
2020ND50ND
20210.640 ppb52ND - 1.90 ppb
20221.09 ppb97ND - 1.80 ppb
20231.03 ppb97ND - 2.10 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
2018-02-26AE15385ND
2018-02-26AE153561.20 ppb
2018-06-08AE29203ND
2018-09-12AE39763ND
2018-11-27AE46973ND
2019-02-11AE537541.10 ppb
2019-02-11AE537771.20 ppb
2019-06-19AE712751.30 ppb
2019-08-26AE80573ND
2019-12-09AE91649ND
2020-02-12AE98160ND
2020-02-12AE98099ND
2020-05-11AF10339ND
2020-09-03AF26438ND
2020-11-09AF33694ND
2021-03-04AF453391.30 ppb
2021-03-04AF45387ND
2021-06-04AF56634ND
2021-08-12AF661711.90 ppb
2021-11-03AF75555ND
2022-02-07AF832691.10 ppb
2022-02-07AF833751.000 ppb
2022-02-07AF832431.000 ppb
2022-05-13AF969161.70 ppb
2022-05-13AF969171.80 ppb
2022-09-15AG13188ND
2022-09-15AG13217ND
2022-12-22AG227181.60 ppb
2022-12-22AG227191.60 ppb
2023-03-09Q23095660011.03 ppb
2023-03-09Q23095660041.19 ppb
2023-03-09Q23095660031.31 ppb
2023-04-27AG38407ND
2023-04-27AG38408ND
2023-07-25AG499911.60 ppb
2023-07-25AG499962.10 ppb
2023-11-13AG633391.000 ppb
2023-11-13AG633421.000 ppb