Know Your Environment. Protect Your Health.

Dibromochloromethane

Highridge Water Authority

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.

 

88

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
20190.168 ppb164ND - 1.000 ppb
20200.0431 ppb161ND - 0.690 ppb
2021ND160ND
20220.0319 ppb161ND - 0.510 ppb
2023ND160ND

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
2018-01-178A18021-04ND
2018-01-178A18021-03ND
2018-01-178A18021-02ND
2018-01-178A18021-01ND
2018-10-167068537002ND
2018-10-167068537001ND
2018-10-167068537007ND
2018-10-167068537008ND
2019-01-1570768830020.620 ppb
2019-01-157076883001ND
2019-01-157076883003ND
2019-01-157076883004ND
2019-04-157086106002ND
2019-04-157086106001ND
2019-04-157086106004ND
2019-04-157086106003ND
2019-07-157097777001ND
2019-07-1570977770020.510 ppb
2019-07-157097777004ND
2019-07-157097777003ND
2019-10-1470108593001ND
2019-10-1470108593004ND
2019-10-14701085930030.550 ppb
2019-10-14701085930021.000 ppb
2020-01-14ND
2020-01-14ND
2020-01-14ND
2020-01-14ND
2020-04-15ND
2020-04-15ND
2020-04-15ND
2020-04-15ND
2020-07-17ND
2020-07-17ND
2020-07-170.690 ppb
2020-07-17ND
2020-10-14ND
2020-10-14ND
2020-10-14ND
2020-10-14ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-01-13ND
2021-04-14ND
2021-04-14ND
2021-04-14ND
2021-04-14ND
2021-07-15ND
2021-07-15ND
2021-07-15ND
2021-07-15ND
2021-10-12ND
2021-10-12ND
2021-10-12ND
2021-10-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-01-12ND
2022-04-13ND
2022-04-13ND
2022-04-13ND
2022-04-13ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-07-13ND
2022-10-12ND
2022-10-120.510 ppb
2022-10-12ND
2022-10-12ND
2023-01-12ND
2023-01-12ND
2023-01-12ND
2023-01-12ND
2023-04-12ND
2023-04-12ND
2023-04-12ND
2023-04-12ND
2023-07-16ND
2023-07-16ND
2023-07-16ND
2023-07-16ND
2023-10-29ND
2023-10-29ND
2023-10-29ND
2023-10-29ND