Know Your Environment. Protect Your Health.

Bromodichloromethane

Austin Utilities

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)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.400 ppb21ND - 0.800 ppb
20190.700 ppb21ND - 1.40 ppb
20202.15 ppb21ND - 4.30 ppb
20211.40 ppb220.700 ppb - 2.10 ppb
2022ND20ND
20230.750 ppb220.600 ppb - 0.900 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
2018-05-0218E0285-010.800 ppb
2018-05-0218E0285-02ND
2019-05-0119E0170-011.40 ppb
2019-05-0119E0170-02ND
2020-05-1220E0794-014.30 ppb
2020-05-1220E0794-02ND
2021-05-0321E0176-012.10 ppb
2021-05-0321E0176-020.700 ppb
2022-05-1022E0886-01ND
2022-05-1022E0886-02ND
2023-05-0223E0280-010.900 ppb
2023-05-0223E0280-020.600 ppb