Know Your Environment. Protect Your Health.

Bromodichloromethane

Sundance Addition

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.

 

30

Samples

0

Samples exceeding legal limit (MCL)

11

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.818 ppb52ND - 2.40 ppb
20190.602 ppb52ND - 1.67 ppb
20200.304 ppb51ND - 1.52 ppb
20210.404 ppb51ND - 2.02 ppb
20220.476 ppb51ND - 2.38 ppb
20235.09 ppb54ND - 14.0 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
2018-03-27Q18125800181.69 ppb
2018-03-27Q18125800202.40 ppb
2018-03-27Q1812580009ND
2018-06-19Q1824313001ND
2018-06-19Q1824313002ND
2019-09-09Q1962975001ND
2019-09-09Q19629750031.34 ppb
2019-09-09Q19629750051.67 ppb
2019-09-09Q1962975014ND
2019-09-09Q1962975015ND
2020-07-22Q2028870001ND
2020-07-22Q20288700031.52 ppb
2020-07-22Q2028870009ND
2020-07-22Q2028870012ND
2020-07-22Q2028870013ND
2021-09-09Q2124628001ND
2021-09-09Q2124628002ND
2021-12-09Q2134714007ND
2021-12-09Q2134714009ND
2021-12-09Q21347140112.02 ppb
2022-09-26Q2228779001ND
2022-09-26Q2228779002ND
2022-10-21Q2232010003ND
2022-10-21Q2232010005ND
2022-10-21Q22320100072.38 ppb
2023-03-20Q2310440001ND
2023-03-20Q23104400031.33 ppb
2023-03-20Q23104400051.39 ppb
2023-05-18Q231878100114.0 ppb
2023-05-18Q23187810028.71 ppb