Know Your Environment. Protect Your Health.

Dibromochloromethane

JBLM Lewis

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.933 ppb31ND - 2.80 ppb
20190.167 ppb31ND - 0.500 ppb
2020N/A00N/A
20210.275 ppb42ND - 0.600 ppb
20220.960 ppb220.750 ppb - 1.17 ppb
20230.553 ppb42ND - 1.18 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
2018-05-29ND
2018-08-13ND
2018-08-132.80 ppb
2019-07-310.500 ppb
2019-07-31ND
2019-12-16ND
2021-08-3141661920.600 ppb
2021-08-3141662000.500 ppb
2021-09-224187141ND
2021-11-194207600ND
2022-08-0543332081.17 ppb
2022-08-0543332060.750 ppb
2023-04-134443139ND
2023-04-134443139ND
2023-08-0945058611.18 ppb
2023-08-0945058641.03 ppb