Know Your Environment. Protect Your Health.

Dibromochloromethane

Chipeta Water District

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND40ND
20210.158 ppb41ND - 0.630 ppb
20220.155 ppb41ND - 0.620 ppb
20230.318 ppb42ND - 0.700 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 Result
2018-08-02ND
2018-11-05ND
2019-11-05ND
2020-02-04ND
2020-05-05ND
2020-08-05ND
2020-11-03ND
2021-02-020.630 ppb
2021-05-04ND
2021-08-03ND
2021-11-09ND
2022-02-150.620 ppb
2022-05-05ND
2022-08-02ND
2022-11-08ND
2023-02-070.700 ppb
2023-05-020.570 ppb
2023-08-07ND
2023-11-07ND