Know Your Environment. Protect Your Health.

Bromodichloromethane

Battle Ground Water Department

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.475 ppb21ND - 0.950 ppb
20190.250 ppb41ND - 1.000 ppb
2020N/A00N/A
20211.85 ppb42ND - 5.10 ppb
20221.78 ppb63ND - 5.00 ppb
20232.20 ppb51ND - 11.0 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
2018-08-080.950 ppb
2018-08-08ND
2019-05-21ND
2019-08-13ND
2019-08-131.000 ppb
2019-11-07ND
2021-06-234188694ND
2021-08-2441942912.30 ppb
2021-08-2441942955.10 ppb
2021-10-194194906ND
2022-05-314292477ND
2022-05-314292478ND
2022-06-294303896ND
2022-08-3044256662.50 ppb
2022-08-3044256675.00 ppb
2022-10-2743706563.20 ppb
2023-06-074473915ND
2023-07-184488413ND
2023-09-274531538ND
2023-09-27453153911.0 ppb
2023-12-054570035ND