Know Your Environment. Protect Your Health.

Dibromochloromethane

Study Butte Terlingua 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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND20ND
2021ND20ND
2022ND20ND
20231.54 ppb221.09 ppb - 1.98 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
2018-01-22Q1802860001ND
2018-08-27Q1834499001ND
2019-03-20Q1911774004ND
2020-02-03Q2004904001ND
2020-05-05Q2017830001ND
2021-06-07Q2115084001ND
2021-06-07Q2115084002ND
2022-01-25Q2202773002ND
2022-05-10Q2214210001ND
2023-01-24Q23034860011.09 ppb
2023-08-28Q23373700011.98 ppb