Know Your Environment. Protect Your Health.

Bromodichloromethane

Wisconsin Dells Waterworks

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.750 ppb110.750 ppb
20190.250 ppb110.250 ppb
20200.129 ppb72ND - 0.530 ppb
20210.570 ppb110.570 ppb
20220.460 ppb110.460 ppb
20230.0617 ppb61ND - 0.370 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
2018-09-201798020.750 ppb
2019-09-193293470.250 ppb
2020-09-10471856ND
2020-09-11472186ND
2020-09-11472174ND
2020-09-11472182ND
2020-09-11472166ND
2020-09-114721710.370 ppb
2020-09-174751750.530 ppb
2021-09-2110516380.570 ppb
2022-09-2912419040.460 ppb
2023-04-261317741ND
2023-04-261317743ND
2023-06-201337392ND
2023-07-181349254ND
2023-07-181349252ND
2023-09-2113751610.370 ppb