Know Your Environment. Protect Your Health.

Dibromochloromethane

Shelton City Of

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.

 

17

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.230 ppb21ND - 0.460 ppb
20190.1000 ppb51ND - 0.500 ppb
2020N/A00N/A
20210.195 ppb62ND - 0.600 ppb
2022ND20ND
20230.355 ppb21ND - 0.710 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
2018-11-140.460 ppb
2018-11-14ND
2019-05-14ND
2019-05-14ND
2019-07-11ND
2019-11-05ND
2019-11-050.500 ppb
2021-03-174166785ND
2021-08-114179084ND
2021-11-084279857ND
2021-11-0842798560.600 ppb
2021-12-0142183990.570 ppb
2021-12-014218397ND
2022-12-134390362ND
2022-12-134390361ND
2023-12-0745600290.710 ppb
2023-12-074560028ND