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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Stagecoach S/d

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND10ND
2016ND20ND
2017ND60ND
2018ND40ND
2019ND10ND

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
2014-01-28C316312-03ND
2014-01-28C316312-01ND
2014-04-09C403286-01ND
2014-07-16C407951-01ND
2014-10-21C412146-01ND
2015-01-13ND
2016-01-19C516141-01ND
2016-10-14CZ13877-01ND
2017-01-24CZ18960-01ND
2017-01-24CZ18958-03ND
2017-01-24CZ18958-01ND
2017-04-25CA03099-01ND
2017-07-28CA07826-01ND
2017-11-16CA13326-01ND
2018-02-21CA18460-01 ND
2018-05-16CB03528-01 ND
2018-07-19CB08253-01 ND
2018-10-16CB14421-01 ND
2019-10-30CC15944-01 ND