Know Your Environment. Protect Your Health.

Bromoform

Nora Springs Water Supply

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.405 ppb21ND - 0.810 ppb
20190.240 ppb21ND - 0.480 ppb
2020ND20ND
20210.150 ppb21ND - 0.300 ppb
2022ND20ND
2023ND20ND

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
2018-08-281H82455-010.810 ppb
2018-08-281H82455-02ND
2019-08-271H92325-010.480 ppb
2019-08-271H92325-02ND
2020-08-171H01373-01ND
2020-08-171H01373-02ND
2021-08-171EH1709-010.300 ppb
2021-08-171EH1709-02ND
2022-08-241FH2847-01ND
2022-08-241FH2847-02ND
2023-08-101GH1463-01ND
2023-08-101GH1463-02ND