Know Your Environment. Protect Your Health.

Dibromochloromethane

Gentry Waterworks

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.

 

46

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.167 ppb61ND - 1.000 ppb
2020ND80ND
20210.463 ppb83ND - 1.40 ppb
20220.343 ppb82ND - 1.38 ppb
20230.943 ppb86ND - 1.41 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 Lab ID Result
2018-01-2318025009602ND
2018-01-2318025009502ND
2018-04-2318116002702ND
2018-04-2318116002602ND
2018-07-2418207005202ND
2018-07-2418207005302ND
2018-11-2618332005601ND
2018-11-2618332005701ND
2019-01-2319024008802ND
2019-01-23190240089021.000 ppb
2019-04-1719109000402ND
2019-04-1719109000302ND
2019-07-1619198004602ND
2019-07-1619198004502ND
2020-01-2220023009702ND
2020-01-2220023009602ND
2020-04-2020114012602ND
2020-04-2020114012702ND
2020-07-2120205010602ND
2020-07-2120205010502ND
2020-10-2020296009202ND
2020-10-2020296009302ND
2021-01-2021021008902ND
2021-01-2021021009002ND
2021-04-20211120103021.000 ppb
2021-04-2021112010402ND
2021-07-2121203012602ND
2021-07-2121203012702ND
2021-10-19212940161021.30 ppb
2021-10-19212940160021.40 ppb
2022-01-1922020005402ND
2022-01-1922020005302ND
2022-04-19O197232-THM-1ND
2022-04-19O197233-THM-1ND
2022-07-20O199780-THM-1ND
2022-07-20O199779-THM-1ND
2022-10-19O202800-THM-11.38 ppb
2022-10-19O202799-THM-11.36 ppb
2023-01-17O205368-THM-11.41 ppb
2023-01-17O205369-THM-11.39 ppb
2023-04-19O208043-THM-1ND
2023-04-19O208044-THM-1ND
2023-07-18O210893-THM-11.10 ppb
2023-07-18O210894-THM-11.29 ppb
2023-10-17O212990-THM-11.19 ppb
2023-10-17O212989-THM-11.16 ppb