Know Your Environment. Protect Your Health.

Dibromochloromethane

Marlborough Water District

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020ND80ND
2021ND80ND
2022ND80ND
2023ND80ND

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
2018-02-07MA180255ND
2018-02-07MA180254ND
2018-05-22MR180936ND
2018-05-22MR180937ND
2018-08-14TM181684ND
2018-08-14TM181685ND
2018-11-08MA182595ND
2018-11-08MA182594ND
2019-02-20MA190388ND
2019-02-20MA190387ND
2019-05-29053019021ND
2019-05-29053019022ND
2019-08-08080819011ND
2019-08-08080819012ND
2019-11-1311131911-1ND
2019-11-1311131911-2ND
2020-02-1902192002-2ND
2020-02-1902192002-1ND
2020-07-1607162001-2ND
2020-07-1607162001-1ND
2020-09-2909292013-1ND
2020-09-2909292013-2ND
2020-11-0411042001-2ND
2020-11-0411042001-1ND
2021-02-1802182115-1ND
2021-02-1802182115-2ND
2021-05-2705272103-1ND
2021-05-2705272103-2ND
2021-08-3108312103-2ND
2021-08-3108312103-1ND
2021-11-1611162108-2ND
2021-11-1611162108-1ND
2022-02-2202222205-2ND
2022-02-2202222205-1ND
2022-05-2405242201-2ND
2022-05-2405242201-1ND
2022-08-10MA222317ND
2022-08-10MA222318ND
2022-11-29TM223820ND
2022-11-29TM223819ND
2023-02-08TM230454ND
2023-02-08TM230455ND
2023-07-06MB232327ND
2023-07-06MB232326ND
2023-09-26MB233579ND
2023-09-26MB233580ND
2023-11-29MB234454ND
2023-11-29MB234453ND