Know Your Environment. Protect Your Health.

1,1,1-Trichloroethane

Duncannon Municipal Water

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
2018ND20ND
2019ND10ND
2020ND40ND
2021ND60ND
2022ND10ND
2023ND40ND

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
2018-08-228H23016-02ND
2018-11-138K15056-01ND
2019-08-199080661-01ND
2020-03-3021991380.00ND
2020-03-3021991381.00ND
2020-03-3021991382.00ND
2020-08-0422967123.00ND
2021-02-1524027744.00ND
2021-03-0824214577.00ND
2021-03-2224214625.00ND
2021-06-0124798986.00ND
2021-08-0325189165.00ND
2021-12-2825914152.00ND
2022-10-2627795522.00ND
2023-07-3129465062.00ND
2023-07-3129465031.00ND
2023-07-3129465082.00ND
2023-07-3129465011.00ND