Know Your Environment. Protect Your Health.

Dibromochloromethane

Mountain Springs Water Supply Corporation

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
20190.222 ppb51ND - 1.11 ppb
20200.632 ppb63ND - 1.57 ppb
20210.340 ppb51ND - 1.70 ppb
2022ND50ND
20230.290 ppb51ND - 1.45 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
2018-03-13Q1810191003ND
2018-03-13Q1810191005ND
2018-03-13Q1810191001ND
2018-06-28Q1826059002ND
2018-06-28Q1826059005ND
2019-01-28Q1904051006ND
2019-01-28Q1904051008ND
2019-01-28Q19040510101.11 ppb
2019-01-28Q1904051012ND
2019-08-01Q1950152002ND
2020-05-13Q20193390091.14 ppb
2020-05-13Q20193390101.08 ppb
2020-09-29Q20383360011.57 ppb
2020-11-05Q2043235022ND
2020-11-05Q2043235004ND
2020-11-05Q2043235008ND
2021-07-28Q21197810021.70 ppb
2021-11-16Q2132004001ND
2021-11-16Q2132004003ND
2021-11-16Q2132004005ND
2021-11-16Q2132004007ND
2022-07-18Q2220621002ND
2022-10-18Q2231735009ND
2022-10-18Q2231735015ND
2022-10-18Q2231735013ND
2022-10-18Q2231735011ND
2023-09-19Q2340263002ND
2023-11-30Q2351033007ND
2023-11-30Q2351033009ND
2023-11-30Q2351033011ND
2023-12-13Q23534130031.45 ppb