Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Metropolitan District Commission

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND30ND

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
2018-07-16AE00927GEND
2018-07-16AE00912GEND
2018-07-16AE00911GEND
2019-06-05AE29314GEND
2019-06-05AE29313GEND
2019-06-05AE29315GEND
2020-06-02AE59301GEND
2020-06-02AE59305GEND
2020-06-02AE59302GEND
2021-11-23V300107450 300107457ND
2021-11-23V300107451 300107463ND
2021-11-29V300109635 300109637ND
2022-12-15V300287053 300287060ND
2022-12-15V300287072 300287079ND
2022-12-15V300287100 300287107ND
2023-12-06V300456527 300456529ND
2023-12-06V300456525 300456531ND
2023-12-06V300456533 300456535ND