Know Your Environment. Protect Your Health.

Dibromochloromethane

Knox-Chapman Utility 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.

 

59

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020N/A00N/A
20210.261 ppb184ND - 1.28 ppb
20220.0486 ppb221ND - 1.07 ppb
20230.0612 ppb171ND - 1.04 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
2018-05-09ND
2019-04-02ND
2021-02-09ND
2021-02-09ND
2021-02-09ND
2021-02-09ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-06-08ND
2021-06-08ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-08-10ND
2021-11-111.18 ppb
2021-11-111.07 ppb
2021-11-111.28 ppb
2021-11-111.17 ppb
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-02-08ND
2022-03-08ND
2022-03-08ND
2022-05-10ND
2022-05-10ND
2022-05-10ND
2022-05-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-08-10ND
2022-11-081.07 ppb
2022-11-08ND
2022-11-08ND
2022-11-08ND
2023-02-14ND
2023-02-14ND
2023-02-14ND
2023-02-14ND
2023-03-14ND
2023-05-16ND
2023-05-16ND
2023-05-16ND
2023-05-16ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-08-08ND
2023-11-14ND
2023-11-14ND
2023-11-14ND
2023-11-141.04 ppb