Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

St Charles Water District 1 East Bank

1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND80ND
2020ND20ND
2021ND40ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-2335370117001ND
2018-01-2335370117001ND
2019-01-2235444037001ND
2019-01-2235444038001ND
2019-01-2235444037001ND
2019-01-2235444038001ND
2019-09-0535495382002ND
2019-09-0535495382001ND
2019-09-0535495382002ND
2019-09-0535495382001ND
2020-03-0535535509001ND
2020-03-0535535509002ND
2021-01-2835608065001ND
2021-01-2835608065002ND
2021-03-1035618304001ND
2021-03-1035618304002ND
2022-02-0235694868001ND
2022-02-0235694870001ND
2023-03-2035787602001ND
2023-03-2035787604001ND