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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Schofield Waterworks

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND60ND
2016ND60ND
2017ND40ND
2018ND30ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-02-10769670ND
2014-02-10769666ND
2014-02-10769668ND
2014-04-24782514ND
2014-07-16803522ND
2014-11-13831497ND
2015-03-03846158ND
2015-03-03846154ND
2015-03-03846156ND
2015-04-20855168ND
2015-07-07869336ND
2015-12-07897130ND
2016-02-09904665ND
2016-02-09904667ND
2016-02-09904669ND
2016-04-05913780ND
2016-08-10938490ND
2016-10-12953076ND
2017-06-20999042ND
2017-08-161011908ND
2017-08-161011903ND
2017-11-071028389ND
2018-08-281076576ND
2018-08-281076575ND
2018-08-281076574ND
2019-09-161148084ND
2019-09-161148086ND
2019-09-161148082ND