Know Your Environment. Protect Your Health.

Dibromochloromethane

Shelbyville Water System

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.

 

61

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
20210.0612 ppb171ND - 1.04 ppb
20220.102 ppb222ND - 1.15 ppb
2023ND190ND

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
2018-01-29ND
2019-01-10ND
2020-01-14ND
2021-01-06ND
2021-03-01ND
2021-03-01ND
2021-03-01ND
2021-03-01ND
2021-06-01ND
2021-06-01ND
2021-06-01ND
2021-06-01ND
2021-08-311.04 ppb
2021-08-31ND
2021-08-31ND
2021-08-31ND
2021-12-06ND
2021-12-06ND
2021-12-06ND
2021-12-06ND
2022-01-05ND
2022-01-05ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-03-07ND
2022-06-06ND
2022-06-06ND
2022-06-06ND
2022-06-06ND
2022-09-011.10 ppb
2022-09-011.15 ppb
2022-09-01ND
2022-09-01ND
2022-12-02ND
2022-12-02ND
2022-12-02ND
2022-12-02ND
2023-01-09ND
2023-01-09ND
2023-01-09ND
2023-03-06ND
2023-03-06ND
2023-03-06ND
2023-03-06ND
2023-06-02ND
2023-06-02ND
2023-06-02ND
2023-06-02ND
2023-09-01ND
2023-09-01ND
2023-09-01ND
2023-09-01ND
2023-12-04ND
2023-12-04ND
2023-12-04ND
2023-12-04ND