Know Your Environment. Protect Your Health.

Dibromochloromethane

Pepperell DPW Water Division

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.991 ppb72ND - 4.04 ppb
20191.57 ppb73ND - 6.12 ppb
20201.67 ppb72ND - 8.97 ppb
20210.697 ppb93ND - 3.73 ppb
20220.233 ppb62ND - 0.800 ppb
20230.600 ppb82ND - 4.20 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 Result
2018-04-02ND
2018-04-022.90 ppb
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-08-144.04 ppb
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-060.550 ppb
2019-05-066.12 ppb
2019-08-064.34 ppb
2020-06-02ND
2020-06-02ND
2020-06-02ND
2020-06-02ND
2020-06-022.70 ppb
2020-06-02ND
2020-08-048.97 ppb
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-123.73 ppb
2021-08-17ND
2021-08-170.600 ppb
2021-08-17ND
2021-08-201.94 ppb
2022-04-190.800 ppb
2022-04-190.600 ppb
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2023-04-04ND
2023-04-040.600 ppb
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-05-03ND
2023-08-114.20 ppb