Know Your Environment. Protect Your Health.

Dibromochloromethane

Richards Mobile Home Cou

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.233 ppb32ND - 0.500 ppb
20190.250 ppb220.1000 ppb - 0.400 ppb
20200.650 ppb21ND - 1.30 ppb
20210.767 ppb32ND - 1.20 ppb
2022ND20ND
20230.495 ppb220.440 ppb - 0.550 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
2018-06-19L7008422-10.200 ppb
2018-08-28L7053602-1ND
2018-08-28L7053602-20.500 ppb
2019-09-16L7145737-10.1000 ppb
2019-09-16L7145737-20.400 ppb
2020-08-31630-6461-1ND
2020-08-31630-6461-21.30 ppb
2021-06-14630-18462-1ND
2021-08-18630-20859-11.20 ppb
2021-08-18630-20859-21.10 ppb
2022-08-15630-42717-1-THMND
2022-08-15630-42717-2-THMND
2023-12-15630-77631-20.550 ppb
2023-12-15630-77631-10.440 ppb