Know Your Environment. Protect Your Health.

Bromoform

Lyon-sioux Rural Water System-doon

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.890 ppb110.890 ppb
20191.35 ppb111.35 ppb
20200.670 ppb110.670 ppb
20210.760 ppb110.760 ppb
20220.540 ppb110.540 ppb
20231.000 ppb111.000 ppb

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
2018-08-141H81604-010.890 ppb
2019-08-131H91455-011.35 ppb
2020-08-111H01364-010.670 ppb
2021-08-171EH2121-010.760 ppb
2022-08-161FH2304-010.540 ppb
2023-08-221GH2516-011.000 ppb