Know Your Environment. Protect Your Health.

Dibromochloromethane

Maiden, Town of

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.250 ppb41ND - 1.000 ppb
20200.313 ppb82ND - 1.30 ppb
20210.589 ppb92ND - 2.90 ppb
20220.263 ppb82ND - 1.10 ppb
20230.275 ppb82ND - 1.20 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
2018-02-1246775-02ND
2018-02-1246775-01ND
2018-05-0750495-01ND
2018-05-0750495-02ND
2018-08-0654593-01ND
2018-08-0654594-01ND
2018-11-0558920-01ND
2018-11-0558920-02ND
2019-05-0666534-01ND
2019-05-0666534-02ND
2019-08-0570503-01ND
2019-08-0570503-021.000 ppb
2020-02-0378221-02ND
2020-02-0378221-03ND
2020-05-0481879-02ND
2020-05-0481879-03ND
2020-08-0385801-011.30 ppb
2020-08-0385801-021.20 ppb
2020-11-0292504594001_37706ND
2020-11-0292504594002_37706ND
2021-02-0192519869001_37706ND
2021-02-0192519869002_37706ND
2021-05-0392536626001_37706ND
2021-05-0392536632002_37706ND
2021-05-0392536632001_37706ND
2021-08-0292553143001_377062.40 ppb
2021-08-0292553143002_377062.90 ppb
2021-11-0192570140001_37706ND
2021-11-0192570140002_37706ND
2022-02-0792586985001_37706ND
2022-02-0792586985002_37706ND
2022-05-0292602424002_37706ND
2022-05-0292602424003_37706ND
2022-08-0192618140002_37706ND
2022-08-0192618140001_377061.000 ppb
2022-11-0792635313001_377061.10 ppb
2022-11-0792635313002_37706ND
2023-02-13752-3106-1ND
2023-02-13752-3106-2ND
2023-05-081388-23ND
2023-05-081389-23ND
2023-08-142715-23ND
2023-08-142716-23ND
2023-11-06752-13541-11.20 ppb
2023-11-06752-13541-21.000 ppb