Know Your Environment. Protect Your Health.

Dibromochloromethane

Vera Water & Power

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.

 

44

Samples

0

Samples exceeding legal limit (MCL)

13

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.304 ppb82ND - 1.64 ppb
20190.628 ppb95ND - 2.07 ppb
2020N/A00N/A
20210.351 ppb82ND - 2.24 ppb
20220.143 ppb153ND - 0.990 ppb
20230.135 ppb41ND - 0.540 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
2018-08-16ND
2018-08-16ND
2018-08-16ND
2018-08-161.64 ppb
2018-08-29ND
2018-08-29ND
2018-08-29ND
2018-08-290.790 ppb
2019-08-29ND
2019-09-03ND
2019-09-03ND
2019-09-030.600 ppb
2019-09-03ND
2019-09-301.57 ppb
2019-09-300.870 ppb
2019-09-302.07 ppb
2019-09-300.540 ppb
2021-08-114200733ND
2021-08-114200734ND
2021-08-1142007350.570 ppb
2021-08-114200732ND
2021-10-154195289ND
2021-10-154195291ND
2021-10-1541952922.24 ppb
2021-10-154195290ND
2022-08-314344785ND
2022-08-3143447860.550 ppb
2022-08-314344784ND
2022-08-314344783ND
2022-09-1643563160.990 ppb
2022-09-1643563150.610 ppb
2022-09-164356317ND
2022-09-164356318ND
2022-10-034347782ND
2022-10-034347780ND
2022-10-034347783ND
2022-10-034347785ND
2022-10-034347779ND
2022-10-034347781ND
2022-10-034347784ND
2023-09-154524751ND
2023-09-154524753ND
2023-09-1545247520.540 ppb
2023-09-154524750ND