Know Your Environment. Protect Your Health.

Dibromochloromethane

Southern Madison Utilities LLC

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

17

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.600 ppb220.600 ppb
20190.250 ppb42ND - 0.500 ppb
20200.300 ppb42ND - 0.600 ppb
20210.552 ppb440.490 ppb - 0.605 ppb
20220.417 ppb43ND - 0.641 ppb
20230.661 ppb440.617 ppb - 0.679 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2018-05-1518071702RV-18020.600 ppb
2018-11-0118184316RV-18040.600 ppb
2019-02-12190252160.500 ppb
2019-05-1419092611RV-19020.500 ppb
2019-08-13191684RV-1903ND
2019-11-0119239119ND
2020-02-10200279190.600 ppb
2020-05-12200900-100.600 ppb
2020-08-11201579-07VND
2020-12-29202503-19VND
2021-02-09210245-19V0.490 ppb
2021-05-11210836-08V0.576 ppb
2021-08-10211507-10V0.605 ppb
2021-11-09212215-19V0.535 ppb
2022-02-01220195-19VND
2022-05-10220873-040.513 ppb
2022-08-09221594-19V0.641 ppb
2022-11-01222249-19V0.515 ppb
2023-02-14230294-10V0.673 ppb
2023-05-09230927-07V0.679 ppb
2023-08-15231719-08V0.674 ppb
2023-11-14232401-18V0.617 ppb