Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

East Valley Water 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.

MORE ABOUT THIS CONTAMINANT

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND10ND
2016ND180ND
2017ND20ND
2018ND10ND
2019ND170ND

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
2014-02-213761-036-0745ND
2014-07-233761-028-1130ND
2015-03-243761-036-0745ND
2016-01-053761-036-1003ND
2016-03-013761-033-0753ND
2016-03-013761-053-0820ND
2016-03-013761-015-0744ND
2016-03-013761-032-0806ND
2016-03-013761-031-0841ND
2016-03-013761-024-0855ND
2016-03-013761-016-0829ND
2016-03-013761-021-0915ND
2016-03-013761-017-1000ND
2016-03-013761-020-0924ND
2016-03-023761-055-0913ND
2016-03-023761-046-0811ND
2016-03-023761-042-0747ND
2016-03-023761-039-0821ND
2016-03-033761-023-0900ND
2016-03-033761-047-0505ND
2016-03-033761-019-0823ND
2017-01-053761-036-0820ND
2017-12-053761-028-0850ND
2018-01-053761-036-0752ND
2019-01-033761-036-0830ND
2019-03-053761-033-0735ND
2019-03-053761-017-0807ND
2019-03-053761-032-0750ND
2019-03-053761-020-0818ND
2019-03-123761-021-0808ND
2019-03-123761-023-0754ND
2019-03-123761-042-0729ND
2019-03-123761-024-0820ND
2019-03-123761-047-0753ND
2019-03-193761-015-0734ND
2019-03-193761-053-0751ND
2019-03-193761-031-0759ND
2019-03-193761-019-0825ND
2019-03-263761-055-1014ND
2019-03-263761-039-0955ND
2019-06-213761-046-0810ND