Know Your Environment. Protect Your Health.

Bromodichloromethane

Dupont Water System City Of

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020N/A00N/A
2021ND20ND
20220.630 ppb220.530 ppb - 0.730 ppb
20230.106 ppb71ND - 0.740 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
2018-07-12ND
2018-07-12ND
2019-07-16ND
2019-07-16ND
2021-07-214149082ND
2021-07-214149083ND
2022-07-1943198920.730 ppb
2022-07-1943198910.530 ppb
2023-06-144470356ND
2023-06-144470357ND
2023-06-144470358ND
2023-06-144470358ND
2023-06-144470358ND
2023-07-114485483ND
2023-07-1144854820.740 ppb