Know Your Environment. Protect Your Health.

Dibromochloromethane

Garden Heights Subdivision Water System

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
20200.650 ppb21ND - 1.30 ppb
2021ND20ND
20220.585 ppb220.500 ppb - 0.670 ppb
20230.440 ppb21ND - 0.880 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
2018-06-0135396022001ND
2018-06-0135396022002ND
2018-06-0135396022001ND
2018-06-0135396022002ND
2019-06-0735474274001ND
2019-06-0735474274002ND
2019-06-0735474274001ND
2019-06-0735474274002ND
2020-06-2535559374001ND
2020-06-25355593740021.30 ppb
2021-06-2435643279001ND
2021-06-2435643279002ND
2022-06-09357238930010.670 ppb
2022-06-09357238930020.500 ppb
2023-06-01358037970010.880 ppb
2023-06-0135803797002ND