Know Your Environment. Protect Your Health.

Dibromochloromethane

Woodward Resource Center

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.900 ppb109ND - 1.40 ppb
20191.03 ppb86ND - 1.90 ppb
20200.925 ppb87ND - 1.30 ppb
20210.725 ppb84ND - 1.90 ppb
20220.488 ppb82ND - 2.90 ppb
2023ND40ND

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
2018-02-15OE6233371.000 ppb
2018-02-15OE6233360.900 ppb
2018-04-23OE6486631.40 ppb
2018-04-23OE6486621.000 ppb
2018-05-23OE661412ND
2018-05-23OE6614130.900 ppb
2018-08-08OE6955551.000 ppb
2018-08-08OE6955561.000 ppb
2018-11-19OE7415641.30 ppb
2018-11-19OE7415650.500 ppb
2019-02-13OE7704291.30 ppb
2019-02-13OE7704301.30 ppb
2019-05-20OE810103ND
2019-05-20OE810104ND
2019-08-22OE8549371.000 ppb
2019-08-22OE8549381.000 ppb
2019-11-20OE8960871.70 ppb
2019-11-20OE8960881.90 ppb
2020-02-26OE9333630.900 ppb
2020-02-26OE9333640.900 ppb
2020-05-14OE1008268ND
2020-05-14OE10082690.700 ppb
2020-08-18OE11829611.20 ppb
2020-08-18OE11829331.30 ppb
2020-11-18OE14350421.30 ppb
2020-11-18OE14350431.10 ppb
2021-02-23OE15994551.80 ppb
2021-02-23OE15994561.40 ppb
2021-05-17OE16987661.90 ppb
2021-05-17OE16987670.700 ppb
2021-08-09OE1788578ND
2021-08-09OE1788579ND
2021-11-03OE1918693ND
2021-11-03OE1918694ND
2022-02-15OE20452262.90 ppb
2022-02-15OE20452271.000 ppb
2022-05-18OE2101783ND
2022-05-18OE2101784ND
2022-08-23OE2159431ND
2022-08-23OE2159432ND
2022-11-17OE2206983ND
2022-11-17OE2206984ND
2023-02-15OE2242410ND
2023-05-11OE2279124ND
2023-08-21OE2325089ND
2023-11-20OE2365472ND