Know Your Environment. Protect Your Health.

Bromoform

Ridgefield Public Works

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020N/A00N/A
20210.450 ppb41ND - 1.80 ppb
20220.228 ppb41ND - 0.910 ppb
2023ND30ND

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
2018-08-08ND
2018-08-08ND
2019-08-07ND
2019-08-07ND
2021-08-184194305ND
2021-08-1841942871.80 ppb
2021-08-184194289ND
2021-11-174213224ND
2022-01-264241732ND
2022-08-174364073ND
2022-08-1743593630.910 ppb
2022-08-174359364ND
2023-08-234514705ND
2023-08-234513289ND
2023-08-234513292ND