Know Your Environment. Protect Your Health.

Bromoform

Franklin County Rural Water District 6

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.780 ppb330.560 ppb - 1.20 ppb
20190.450 ppb42ND - 1.30 ppb
20200.973 ppb43ND - 2.30 ppb
20210.865 ppb440.540 ppb - 1.50 ppb
20220.805 ppb43ND - 1.60 ppb
20230.553 ppb42ND - 1.60 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
2018-03-129372891.20 ppb
2018-06-129880510.580 ppb
2018-09-2410495470.560 ppb
2019-03-111135283ND
2019-06-1011848580.500 ppb
2019-09-101240003ND
2019-12-0212824941.30 ppb
2020-03-021333533ND
2020-06-0813979070.680 ppb
2020-09-1415195662.30 ppb
2020-12-0717027150.910 ppb
2021-03-0817894750.790 ppb
2021-06-2718685940.540 ppb
2021-09-1319569320.630 ppb
2021-12-1420689481.50 ppb
2022-03-0822128710.810 ppb
2022-06-132277370ND
2022-09-1223574371.60 ppb
2022-12-0524116370.810 ppb
2023-03-062462795ND
2023-06-1225173100.610 ppb
2023-09-2725842841.60 ppb
2023-12-042619556ND