Know Your Environment. Protect Your Health.

Bromodichloromethane

Medway Water and Sewer Department

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

71

Samples

0

Samples exceeding legal limit (MCL)

39

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20187.00 ppb2016ND - 13.0 ppb
20197.52 ppb2016ND - 15.0 ppb
20203.01 ppb62ND - 12.9 ppb
20210.995 ppb102ND - 5.32 ppb
20220.129 ppb71ND - 0.900 ppb
20230.841 ppb82ND - 6.30 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-02-1211.0 ppb
2018-02-127.70 ppb
2018-02-129.00 ppb
2018-02-129.50 ppb
2018-05-08ND
2018-05-084.80 ppb
2018-05-08ND
2018-05-08ND
2018-05-087.30 ppb
2018-05-0813.0 ppb
2018-05-084.40 ppb
2018-06-25ND
2018-08-0710.00 ppb
2018-08-0711.0 ppb
2018-08-075.10 ppb
2018-08-077.20 ppb
2018-11-058.00 ppb
2018-11-0510.00 ppb
2018-11-0511.0 ppb
2018-11-0511.0 ppb
2019-02-125.80 ppb
2019-02-129.50 ppb
2019-02-1211.0 ppb
2019-02-128.00 ppb
2019-05-078.70 ppb
2019-05-079.10 ppb
2019-05-07ND
2019-05-078.70 ppb
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-077.20 ppb
2019-08-1215.0 ppb
2019-08-1211.0 ppb
2019-08-1212.0 ppb
2019-08-1214.0 ppb
2019-11-128.80 ppb
2019-11-128.40 ppb
2019-11-126.30 ppb
2019-11-126.80 ppb
2020-06-16ND
2020-06-16ND
2020-06-16ND
2020-06-16ND
2020-08-1212.9 ppb
2020-08-125.16 ppb
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-04-27ND
2021-08-115.32 ppb
2021-08-11ND
2021-08-114.63 ppb
2021-10-25ND
2022-01-05ND
2022-04-200.900 ppb
2022-04-20ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2022-04-20ND
2023-04-19ND
2023-04-19ND
2023-04-190.430 ppb
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-04-19ND
2023-08-286.30 ppb