Know Your Environment. Protect Your Health.

Dibromochloromethane

Summit Water & Supply Company

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
20180.685 ppb220.610 ppb - 0.760 ppb
20190.455 ppb42ND - 1.03 ppb
2020N/A00N/A
20210.470 ppb21ND - 0.940 ppb
20220.173 ppb61ND - 1.04 ppb
20230.970 ppb220.820 ppb - 1.12 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
2018-09-180.610 ppb
2018-09-180.760 ppb
2019-08-12ND
2019-08-12ND
2019-09-130.790 ppb
2019-09-131.03 ppb
2021-09-1541798960.940 ppb
2021-09-154179895ND
2022-06-164298843ND
2022-08-314366585ND
2022-08-314366584ND
2022-09-0643625671.04 ppb
2022-09-064362565ND
2022-09-234361844ND
2023-09-1445295051.12 ppb
2023-09-1445295080.820 ppb