Know Your Environment. Protect Your Health.

Chloroform

Correctional Training Facility - Soledad

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-08-07CA2710850_DST_801-201808070905ND
2018-08-07CA2710850_DST_802-201808071000ND
2019-08-06CA2710850_DST_801-201908060820ND
2019-08-06CA2710850_DST_802-201908060925ND
2019-09-04CA2710850_DST_801-201909040900ND
2019-09-04CA2710850_DST_802-201909040845ND
2020-08-11CA2710850_DST_801-202008110800ND
2020-08-11CA2710850_DST_802-202008110900ND
2021-08-10CA2710850_DST_802-202108100939ND
2021-08-10CA2710850_DST_801-202108100915ND
2022-08-31CA2710850_DST_801-202208310900ND
2022-08-31CA2710850_DST_802-202208310920ND
2023-08-30CA2710850_DST_802-202308301107ND
2023-08-30CA2710850_DST_801-202308301032ND