Know Your Environment. Protect Your Health.

Bromoform

Wisconsin Dells Waterworks

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.00 ppb112.00 ppb
20190.830 ppb110.830 ppb
20200.110 ppb71ND - 0.770 ppb
20211.20 ppb111.20 ppb
20221.40 ppb111.40 ppb
20230.123 ppb61ND - 0.740 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
2018-09-201798022.00 ppb
2019-09-193293470.830 ppb
2020-09-10471856ND
2020-09-11472182ND
2020-09-11472171ND
2020-09-11472166ND
2020-09-11472174ND
2020-09-11472186ND
2020-09-174751750.770 ppb
2021-09-2110516381.20 ppb
2022-09-2912419041.40 ppb
2023-04-261317741ND
2023-04-261317743ND
2023-06-201337392ND
2023-07-181349254ND
2023-07-181349252ND
2023-09-2113751610.740 ppb