Know Your Environment. Protect Your Health.

Bromodichloromethane

Vera Water & Power

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.145 ppb81ND - 1.16 ppb
20190.479 ppb93ND - 2.10 ppb
2020N/A00N/A
20210.149 ppb81ND - 1.19 ppb
20220.0387 ppb151ND - 0.580 ppb
2023ND40ND

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
2018-08-16ND
2018-08-16ND
2018-08-16ND
2018-08-161.16 ppb
2018-08-29ND
2018-08-29ND
2018-08-29ND
2018-08-29ND
2019-08-29ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-300.730 ppb
2019-09-301.48 ppb
2019-09-30ND
2019-09-302.10 ppb
2021-08-114200732ND
2021-08-114200735ND
2021-08-114200734ND
2021-08-114200733ND
2021-10-154195289ND
2021-10-154195290ND
2021-10-1541952921.19 ppb
2021-10-154195291ND
2022-08-314344784ND
2022-08-314344783ND
2022-08-314344786ND
2022-08-314344785ND
2022-09-164356317ND
2022-09-164356318ND
2022-09-1643563160.580 ppb
2022-09-164356315ND
2022-10-034347784ND
2022-10-034347782ND
2022-10-034347785ND
2022-10-034347781ND
2022-10-034347779ND
2022-10-034347783ND
2022-10-034347780ND
2023-09-154524750ND
2023-09-154524752ND
2023-09-154524753ND
2023-09-154524751ND