Know Your Environment. Protect Your Health.

Dibromochloromethane

Paw Blue Mountain Division

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.

 

98

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0625 ppb161ND - 1.000 ppb
20190.0688 ppb162ND - 0.600 ppb
20200.1000 ppb183ND - 0.600 ppb
20210.250 ppb164ND - 1.10 ppb
20220.338 ppb168ND - 1.20 ppb
20230.238 ppb165ND - 1.000 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
2018-02-0938540101ND
2018-02-0938540001ND
2018-02-0938539601ND
2018-02-0938540201ND
2018-05-0939387101ND
2018-05-0939386701ND
2018-05-0939387201ND
2018-05-0939387301ND
2018-08-09406455011.000 ppb
2018-08-0940645101ND
2018-08-0940645601ND
2018-08-0940645701ND
2018-11-0941766101ND
2018-11-0941765901ND
2018-11-0941766001ND
2018-11-0941765801ND
2019-02-1342853801ND
2019-02-1342854001ND
2019-02-1342853901ND
2019-02-1342853701ND
2019-05-0944015701ND
2019-05-1044015901ND
2019-05-1044015801ND
2019-05-1044016001ND
2019-08-0945829601ND
2019-08-09458298010.500 ppb
2019-08-0945829701ND
2019-08-09458299010.600 ppb
2019-11-1147364701ND
2019-11-1147364601ND
2019-11-1147364401ND
2019-11-1247364501ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-02-10ND
2020-04-13ND
2020-04-13ND
2020-05-11ND
2020-05-11ND
2020-05-11ND
2020-05-11ND
2020-08-11ND
2020-08-11ND
2020-08-11ND
2020-08-11ND
2020-11-090.600 ppb
2020-11-090.600 ppb
2020-11-090.600 ppb
2020-11-09ND
2021-02-09ND
2021-02-09ND
2021-02-09ND
2021-02-09ND
2021-05-10ND
2021-05-10ND
2021-05-10ND
2021-05-10ND
2021-08-090.900 ppb
2021-08-090.900 ppb
2021-08-091.10 ppb
2021-08-091.10 ppb
2021-11-09ND
2021-11-09ND
2021-11-09ND
2021-11-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-02-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-05-09ND
2022-08-091.20 ppb
2022-08-090.700 ppb
2022-08-090.800 ppb
2022-08-090.600 ppb
2022-11-090.500 ppb
2022-11-090.500 ppb
2022-11-090.500 ppb
2022-11-090.600 ppb
2023-02-09ND
2023-02-09ND
2023-02-09ND
2023-02-09ND
2023-05-09ND
2023-05-09ND
2023-05-09ND
2023-05-09ND
2023-08-090.700 ppb
2023-08-09ND
2023-08-09ND
2023-08-09ND
2023-11-090.600 ppb
2023-11-090.600 ppb
2023-11-090.900 ppb
2023-11-091.000 ppb