Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Lake Forest Utility District

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND30ND
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
2018-06-19AE30786ND
2018-06-19AE30802ND
2019-09-05AE82290ND
2019-09-05AE82304ND
2020-10-26AF31920ND
2020-10-26AF31928ND
2021-03-08AF45706ND
2021-03-08AF45708ND
2021-04-19AF50507ND
2022-07-21AG05779ND
2022-12-12AG21502ND
2023-08-23AG53719ND
2023-08-23AG53721ND