Know Your Environment. Protect Your Health.

Dibromochloromethane

City of Westworth Village

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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.79 ppb43ND - 3.08 ppb
20191.24 ppb42ND - 3.25 ppb
20200.340 ppb41ND - 1.36 ppb
20210.585 ppb42ND - 1.23 ppb
20221.48 ppb43ND - 2.71 ppb
20232.31 ppb43ND - 3.21 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
2018-01-22Q18022930043.08 ppb
2018-04-18Q18157370013.02 ppb
2018-08-02Q18308710011.05 ppb
2018-10-25Q1842726001ND
2019-02-06Q1905498004ND
2019-04-29Q19169090013.25 ppb
2019-09-03Q19615280011.69 ppb
2019-11-21Q1977741001ND
2020-02-18Q2006088001ND
2020-04-30Q2016738001ND
2020-09-01Q20348370011.36 ppb
2020-11-23Q2046948001ND
2021-03-09Q2106122001ND
2021-04-28Q21107460011.23 ppb
2021-08-03Q2120189001ND
2021-11-15Q21317870011.11 ppb
2022-02-09Q2204733004ND
2022-04-25Q22123330011.15 ppb
2022-09-12Q22269540012.71 ppb
2022-11-15Q22342820012.07 ppb
2023-01-18Q2302601001ND
2023-04-13Q23137150013.21 ppb
2023-09-12Q23391180012.83 ppb
2023-12-01Q23516430013.19 ppb