Know Your Environment. Protect Your Health.

Bromodichloromethane

Hills of Oliver Creek

Bromodichloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

18

Samples

0

Samples exceeding legal limit (MCL)

10

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20184.87 ppb31ND - 14.6 ppb
20190.420 ppb31ND - 1.26 ppb
20201.40 ppb32ND - 3.04 ppb
20211.38 ppb32ND - 3.09 ppb
20222.29 ppb32ND - 5.43 ppb
20231.78 ppb32ND - 3.55 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for bromodichloromethane 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
2018-09-18Q1837078001ND
2018-11-08Q184478100614.6 ppb
2018-11-08Q1844781015ND
2019-05-21Q1927167003ND
2019-05-21Q1927167005ND
2019-05-21Q19271670111.26 ppb
2020-09-14Q20362990013.04 ppb
2020-11-18Q20457470011.15 ppb
2020-11-18Q2045747003ND
2021-06-29Q21169760053.09 ppb
2021-06-29Q2116976010ND
2021-06-29Q21169760081.04 ppb
2022-09-22Q22285750015.43 ppb
2022-11-15Q22343340021.43 ppb
2022-11-15Q2234334004ND
2023-07-20Q23287220033.55 ppb
2023-07-20Q2328722004ND
2023-07-20Q23287220061.80 ppb