Know Your Environment. Protect Your Health.

Bromoform

Public Wholesale WSD 5

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.700 ppb110.700 ppb
2019ND10ND
20200.530 ppb110.530 ppb
2021ND10ND
2022ND10ND
20231.40 ppb111.40 ppb

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
2018-07-1610072480.700 ppb
2019-07-291212762ND
2020-07-2014513630.530 ppb
2021-07-121882167ND
2022-07-182307272ND
2023-07-2425433731.40 ppb