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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Sierra Madre Water Department

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND50ND
2015ND50ND
2016ND50ND
2017ND50ND
2018ND50ND
2019ND50ND

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
2014-05-129588-007-1125ND
2014-05-129588-006-1055ND
2014-05-129588-005-1105ND
2014-05-129588-004-1045ND
2014-05-129588-003-1030ND
2015-05-139588-006-1020ND
2015-05-139588-007-0840ND
2015-05-139588-003-1115ND
2015-05-139588-005-0940ND
2015-05-139588-004-1000ND
2016-05-039588-003-0815ND
2016-05-039588-005-0830ND
2016-05-039588-006-0900ND
2016-05-039588-004-0845ND
2016-05-039588-007-0920ND
2017-05-039588-005-0930ND
2017-05-039588-003-1030ND
2017-05-039588-004-1045ND
2017-05-039588-006-0940ND
2017-05-039588-007-1010ND
2018-05-039588-004-1110ND
2018-05-039588-003-1100ND
2018-05-039588-007-1050ND
2018-05-039588-006-1040ND
2018-05-039588-005-1030ND
2019-05-089588-006-1015ND
2019-05-089588-007-0940ND
2019-05-089588-003-0950ND
2019-05-089588-005-1000ND
2019-05-089588-004-1010ND