Know Your Environment. Protect Your Health.

Dibromochloromethane

South Midway City Mutual Water 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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
20190.500 ppb21ND - 1.000 ppb
2020ND20ND
20210.380 ppb21ND - 0.760 ppb
20220.285 ppb21ND - 0.570 ppb
2023N/A00N/A

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
2018-08-06CA3000825_DST_801-201808060730ND
2018-08-06CA3000825_DST_802-201808060934ND
2019-09-04CA3000825_DST_801-2019090412281.000 ppb
2019-09-04CA3000825_DST_802-201909041250ND
2020-11-04CA3000825_DST_802-202011040910ND
2020-11-04CA3000825_DST_801-202011040920ND
2021-08-06CA3000825_DST_801-2021080609450.760 ppb
2021-08-06CA3000825_DST_802-202108061015ND
2022-09-07CA3000825_DST_802-202209071200ND
2022-09-07CA3000825_DST_801-2022090712000.570 ppb