Know Your Environment. Protect Your Health.

Bromoform

Harris County Municipal Utility District 371

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
20210.275 ppb41ND - 1.10 ppb
20222.01 ppb92ND - 11.0 ppb
2023ND90ND

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
2018-06-26AE31511ND
2018-06-26AE31430ND
2019-09-24AE84379ND
2019-09-24AE84411ND
2020-05-08AF10347ND
2020-05-08AF10423ND
2021-02-01AF419311.10 ppb
2021-06-30AF60102ND
2021-09-17AF70357ND
2021-10-25AF74506ND
2022-02-22AF85826ND
2022-02-22AF85829ND
2022-04-25AF94258ND
2022-04-25AF94202ND
2022-04-25AF94196ND
2022-09-23AG1473411.0 ppb
2022-09-23AG147497.10 ppb
2022-10-24AG18050ND
2022-10-24AG18051ND
2023-01-26AG26438ND
2023-01-26AG26439ND
2023-01-26AG26499ND
2023-04-05AG35552ND
2023-04-05AG35553ND
2023-07-07AG47528ND
2023-07-07AG47544ND
2023-10-18AG60228ND
2023-10-18AG60230ND