Know Your Environment. Protect Your Health.

Dibromochloromethane

Clarence Cannon Wholesale Water Commission

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.912 ppb53ND - 2.06 ppb
20190.475 ppb85ND - 1.04 ppb
20200.702 ppb96ND - 1.63 ppb
20210.588 ppb54ND - 0.820 ppb
20220.736 ppb53ND - 1.56 ppb
20231.53 ppb550.630 ppb - 2.72 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
2018-02-12AD142231.12 ppb
2018-05-08AD204561.38 ppb
2018-08-05AD311292.06 ppb
2018-11-02AD35666ND
2018-11-05AD36259ND
2019-01-31AD392150.710 ppb
2019-02-18AD39334ND
2019-04-09AD466470.640 ppb
2019-05-14AD474150.570 ppb
2019-07-11AD52705ND
2019-08-15AD538541.04 ppb
2019-10-21AD57363ND
2019-11-20AD580410.840 ppb
2020-01-13AD60684ND
2020-02-1920019870.870 ppb
2020-04-222004155ND
2020-05-2520088450.830 ppb
2020-06-2920107761.01 ppb
2020-07-202011492ND
2020-08-1820142461.63 ppb
2020-10-2820165560.880 ppb
2020-11-2920179691.10 ppb
2021-02-2321006170.740 ppb
2021-05-0721108870.680 ppb
2021-08-0921152310.700 ppb
2021-11-092119459ND
2021-11-2221194560.820 ppb
2022-02-212201911ND
2022-04-212204250ND
2022-05-2422115080.860 ppb
2022-08-2122161921.56 ppb
2022-11-1422211121.26 ppb
2023-02-2123005320.780 ppb
2023-04-2423033400.630 ppb
2023-05-0823080791.30 ppb
2023-08-0723132552.72 ppb
2023-11-0723182162.22 ppb