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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

State College Boro Water Auth.

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND10ND
2016ND10ND
2017ND50ND
2018ND10ND
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
2014-02-124B12099-01ND
2014-02-124B12099-02ND
2014-02-124B12099-03ND
2014-02-124B12099-04ND
2014-02-124B12099-05ND
2015-02-1212447183ND
2016-02-1613917314ND
2017-02-1515709972ND
2017-02-1515709973ND
2017-02-1515709974ND
2017-02-1515709975ND
2017-02-1515709976ND
2018-02-148B14177-01ND
2019-02-129B12139-01ND