Know Your Environment. Protect Your Health.

Bromodichloromethane

Glen of Robin Hood

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
20200.800 ppb42ND - 1.60 ppb
2021N/A00N/A
2022ND10ND
20230.510 ppb42ND - 1.10 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
2018-06-11AJ91426ND
2019-06-12AK19806ND
2020-08-25AK56422ND
2020-08-31AK56912ND
2020-08-31AK569131.60 ppb
2020-08-31AK569141.60 ppb
2022-06-29AL04538ND
2023-06-13AL33797ND
2023-10-09AL46940ND
2023-10-09AL469411.10 ppb
2023-10-09AL469420.940 ppb