Know Your Environment. Protect Your Health.

Chloroform

Falls Water Company Inc

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND50ND
2020ND30ND
2021N/A00N/A
2022N/A00N/A
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was 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 and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-08-08VI80810801ND
2018-09-26DI80927201ND
2018-09-26DI80927202ND
2018-11-14VI81110401ND
2019-03-25VI903167001ND
2019-03-25VI90316701ND
2019-04-01VI90400501ND
2019-09-24DI90930501ND
2019-09-24DI90930502ND
2020-09-28DT2100952802ND
2020-09-28DT200952801ND
2020-09-28DT200952802ND
2023-03-28VI30324001ND
2023-06-14VI30624701ND
2023-08-29VI30840803ND