Know Your Environment. Protect Your Health.

Dibromochloromethane

Forks Municipal Water Department

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.350 ppb21ND - 0.700 ppb
20190.503 ppb32ND - 1.10 ppb
2020N/A00N/A
20210.173 ppb31ND - 0.520 ppb
20221.03 ppb53ND - 3.30 ppb
20230.170 ppb31ND - 0.510 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
2018-12-05ND
2018-12-050.700 ppb
2019-08-070.410 ppb
2019-08-21ND
2019-08-301.10 ppb
2021-08-254175304ND
2021-08-254166498ND
2021-08-2541664990.520 ppb
2022-05-094306680ND
2022-08-0943338280.970 ppb
2022-08-3043704500.890 ppb
2022-11-014371620ND
2022-11-0143792963.30 ppb
2023-01-174404440ND
2023-08-2245133010.510 ppb
2023-08-224513302ND