Know Your Environment. Protect Your Health.

Bromoform

West Harris County Municipal Utility District 15

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

18

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.367 ppb31ND - 1.10 ppb
2019ND30ND
20200.400 ppb31ND - 1.20 ppb
2021ND30ND
20220.933 ppb31ND - 2.80 ppb
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-05AE16636ND
2018-03-05AE166321.10 ppb
2018-06-12AE29477ND
2019-01-28AE51688ND
2019-04-23AE63390ND
2019-07-30AE76412ND
2020-01-13AE93133ND
2020-09-21AF27885ND
2020-11-05AF334701.20 ppb
2021-03-09AF46042ND
2021-04-27AF51428ND
2021-06-17AF58618ND
2022-03-01AF86930ND
2022-03-01AF869502.80 ppb
2022-05-09AF95980ND
2023-02-22AG29960ND
2023-02-22AG29962ND
2023-05-15AG40491ND