Know Your Environment. Protect Your Health.

Bromoform

Cherokee County Rural Water District 9

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)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
20190.740 ppb110.740 ppb
2020ND10ND
20210.610 ppb110.610 ppb
20220.930 ppb110.930 ppb
20230.540 ppb110.540 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
2018-09-091040860ND
2019-09-2912498360.740 ppb
2020-09-221518642ND
2021-10-1919976700.610 ppb
2022-09-0523524300.930 ppb
2023-09-1725769980.540 ppb