Know Your Environment. Protect Your Health.

Dibromochloromethane

West Warren-Viola U. D.

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)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20191.34 ppb111.34 ppb
2020N/A00N/A
20210.420 ppb176ND - 1.55 ppb
20220.473 ppb219ND - 1.24 ppb
20230.519 ppb178ND - 1.25 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
2018-09-12ND
2019-08-131.34 ppb
2021-02-08ND
2021-02-08ND
2021-02-08ND
2021-02-08ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-08-091.55 ppb
2021-08-091.37 ppb
2021-08-091.49 ppb
2021-08-091.15 ppb
2021-10-120.562 ppb
2021-11-08ND
2021-11-08ND
2021-11-081.01 ppb
2021-11-08ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-05-091.15 ppb
2022-05-09ND
2022-05-09ND
2022-05-091.12 ppb
2022-08-030.653 ppb
2022-08-081.17 ppb
2022-08-081.07 ppb
2022-08-081.24 ppb
2022-08-08ND
2022-11-081.16 ppb
2022-11-081.18 ppb
2022-11-081.19 ppb
2022-11-08ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-02-07ND
2023-05-091.04 ppb
2023-05-091.10 ppb
2023-05-091.16 ppb
2023-05-09ND
2023-08-071.03 ppb
2023-08-071.000 ppb
2023-08-071.25 ppb
2023-08-071.03 ppb
2023-08-08ND
2023-11-061.21 ppb
2023-11-06ND
2023-11-06ND
2023-11-06ND