Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Highridge Water Authority

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND20ND
2021ND20ND
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
2018-06-137054911001ND
2018-06-137054911002ND
2019-06-127093386001ND
2019-06-127093386002ND
2019-07-167097758001ND
2019-07-167097758002ND
2020-02-2521769550.00ND
2020-02-2521769570.00ND
2021-02-1623985691.00ND
2021-02-1623985711.00ND
2022-06-0726956517.00ND
2022-06-0726956537.00ND
2023-03-2128626420.00ND
2023-03-2128626440.00ND