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EWG's Tap Water Database — 2019 UPDATE

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1,1,1-Trichloroethane

Marshall 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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND30ND
2013ND130ND
2014ND90ND
2015ND10ND
2016ND90ND
2017ND100ND

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
2012-07-31E120503023ND
2012-07-31E120503025ND
2012-11-27E121000008ND
2013-01-23E121105304ND
2013-01-23E121105301ND
2013-04-30E130202338ND
2013-04-30E130202336ND
2013-07-16E130505808ND
2013-07-16E130505805ND
2013-08-12E130800799ND
2013-08-12E130800798ND
2013-08-30E130804741ND
2013-08-30E130804729ND
2013-08-30E130804753ND
2013-10-07E130803845ND
2013-10-07E130803840ND
2014-01-14E131200005ND
2014-02-10E141204239ND
2014-04-07E140304239ND
2014-07-08E140601326ND
2014-07-08E140601332ND
2014-07-08E140601325ND
2014-08-0438295ND
2014-10-28E140802403ND
2014-10-28E140802398ND
2015-07-14VA010-DCLSND
2016-02-10E151204276ND
2016-02-10E151204275ND
2016-05-11E160303032ND
2016-05-11E160303031ND
2016-07-19E160703075ND
2016-07-19E160703077ND
2016-07-19E160703076ND
2016-12-01E160901673ND
2016-12-01E160901674ND
2017-02-28E161201879ND
2017-02-28E161201878ND
2017-06-20E170302822ND
2017-06-20E170302823ND
2017-08-29E170600341ND
2017-08-30E170600340ND
2017-08-30E170600333ND
2017-08-30E170600336ND
2017-12-06E170805508ND
2017-12-06E170805503ND