Know Your Environment. Protect Your Health.

Dibromochloromethane

Harriman Utility Board

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.

 

57

Samples

0

Samples exceeding legal limit (MCL)

20

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.58 ppb111.58 ppb
20191.81 ppb111.81 ppb
2020N/A00N/A
20210.340 ppb175ND - 1.44 ppb
20220.518 ppb218ND - 1.61 ppb
20230.420 ppb175ND - 1.66 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
2018-08-071.58 ppb
2019-08-081.81 ppb
2021-02-17ND
2021-02-17ND
2021-02-17ND
2021-02-17ND
2021-05-04ND
2021-05-04ND
2021-05-04ND
2021-05-04ND
2021-08-04ND
2021-08-041.33 ppb
2021-08-04ND
2021-08-041.44 ppb
2021-08-040.684 ppb
2021-11-011.14 ppb
2021-11-011.19 ppb
2021-11-01ND
2021-11-03ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-05-01ND
2022-05-01ND
2022-05-01ND
2022-05-01ND
2022-08-030.904 ppb
2022-08-031.24 ppb
2022-08-031.38 ppb
2022-08-03ND
2022-08-031.56 ppb
2022-11-021.51 ppb
2022-11-021.40 ppb
2022-11-021.28 ppb
2022-11-021.61 ppb
2023-02-13ND
2023-02-13ND
2023-02-13ND
2023-02-13ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-07-11ND
2023-07-11ND
2023-07-11ND
2023-07-11ND
2023-10-011.30 ppb
2023-10-011.53 ppb
2023-10-011.66 ppb
2023-10-011.32 ppb
2023-10-011.33 ppb