Know Your Environment. Protect Your Health.

Bromoform

Vallecitos Mutual Domestic Water Consumers Association

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.165 ppb21ND - 0.330 ppb
2019ND40ND
2020ND40ND
20210.0900 ppb21ND - 0.180 ppb
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is 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, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-07-252018020651ND
2018-10-3120180311730.330 ppb
2019-01-222019001709ND
2019-04-102019008985ND
2019-07-252019020427ND
2019-10-102019028917ND
2020-01-172020001837ND
2020-04-132020019413ND
2020-07-242020242291ND
2020-10-162020430793ND
2021-07-072021133952ND
2021-10-0420211878170.180 ppb
2022-07-272022112034ND
2023-07-052023030856ND