Know Your Environment. Protect Your Health.

Chloroform

City of Lindsay

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND40ND
2021ND30ND
2022ND50ND
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
2018-03-28Q1813006005ND
2018-03-28Q1813006003ND
2018-06-28Q1826057001ND
2019-04-30Q1917197004ND
2019-04-30Q1917197007ND
2019-09-27Q1970273001ND
2020-03-18Q2011975001ND
2020-05-13Q2019337001ND
2020-05-13Q2019337003ND
2020-05-13Q2019337007ND
2021-06-28Q2116777005ND
2021-06-28Q2116777014ND
2021-06-28Q2116777007ND
2022-06-08Q2216065006ND
2022-06-08Q2216065008ND
2022-06-08Q2216065011ND
2022-08-23Q2224972001ND
2022-11-01Q2233010001ND
2023-07-25Q2329497001ND
2023-07-25Q2329497003ND
2023-07-25Q2329497009ND