Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Pepperell DPW Water Division

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND60ND
2020ND60ND
2021ND80ND
2022ND60ND
2023ND70ND

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 Result
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2018-04-02ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2020-06-02ND
2020-06-02ND
2020-06-02ND
2020-06-02ND
2020-06-02ND
2020-06-02ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-05-12ND
2021-08-17ND
2021-08-17ND
2021-08-17ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2022-04-19ND
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-04-04ND
2023-05-03ND