Know Your Environment. Protect Your Health.

Dibromochloromethane

Shangri La Subdivision

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
20191.57 ppb43ND - 3.48 ppb
20200.353 ppb31ND - 1.06 ppb
2021ND30ND
20220.900 ppb43ND - 1.53 ppb
20230.497 ppb31ND - 1.49 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
2018-11-12Q1845459020ND
2018-11-12Q1845459022ND
2018-11-12Q1845459008ND
2019-06-19Q19376630051.74 ppb
2019-06-19Q19376630071.06 ppb
2019-06-19Q1937663009ND
2019-06-19Q19376630153.48 ppb
2020-06-25Q20256220011.06 ppb
2020-06-25Q2025622003ND
2020-06-25Q2025622005ND
2021-06-16Q2115844002ND
2021-06-16Q2115844006ND
2021-06-16Q2115844004ND
2022-03-22Q2209179008ND
2022-03-22Q22091790101.05 ppb
2022-03-22Q22091790121.53 ppb
2022-06-06Q22157320021.02 ppb
2023-02-21Q2307017001ND
2023-12-04Q23516300011.49 ppb
2023-12-04Q2351630003ND