Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

1,1,1-Trichloroethane

Hartland 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.

MORE ABOUT THIS CONTAMINANT

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND60ND
2016ND50ND
2017ND80ND
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
2014-01-222961267ND
2014-02-062968591ND
2014-02-242979690ND
2014-02-262981929ND
2014-02-272982693ND
2014-04-293016371ND
2014-08-123080630ND
2014-10-163124218ND
2015-01-273177035ND
2015-02-043181045ND
2015-02-093183369ND
2015-05-043235031ND
2015-07-093276668ND
2015-10-133339902ND
2016-02-16905565ND
2016-02-18906004ND
2016-05-03919202ND
2016-08-10938579ND
2016-10-12953152ND
2017-02-07972670ND
2017-02-07972673ND
2017-02-13973355ND
2017-02-13973354ND
2017-02-13973351ND
2017-04-18983886ND
2017-08-081009628ND
2017-10-041022697ND
2018-02-081040247ND
2018-02-151041298ND
2018-04-241051768ND
2018-08-061071628ND
2018-11-281094669ND
2019-03-061108219ND
2019-03-061108213ND
2019-04-301118492ND
2019-08-141141177ND
2019-11-181161413ND