Know Your Environment. Protect Your Health.

Bromodichloromethane

JBLM Lewis

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.47 ppb31ND - 4.40 ppb
20190.167 ppb31ND - 0.500 ppb
2020N/A00N/A
20210.175 ppb41ND - 0.700 ppb
20221.38 ppb220.790 ppb - 1.96 ppb
20230.633 ppb42ND - 1.40 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
2018-05-29ND
2018-08-13ND
2018-08-134.40 ppb
2019-07-310.500 ppb
2019-07-31ND
2019-12-16ND
2021-08-3141661920.700 ppb
2021-08-314166200ND
2021-09-224187141ND
2021-11-194207600ND
2022-08-0543332081.96 ppb
2022-08-0543332060.790 ppb
2023-04-134443139ND
2023-04-134443139ND
2023-08-0945058611.40 ppb
2023-08-0945058641.13 ppb