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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

G & W Water Supply Corporation Field Store

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015ND10ND
2016ND10ND
2017ND10ND
2018ND30ND
2019ND30ND

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
2015-01-27AC77959ND
2016-07-07AD43355ND
2017-02-23AD71781ND
2018-03-06AE17018ND
2018-08-31AE39163ND
2018-11-13AE45936ND
2019-01-17AE50396ND
2019-01-17AE50406ND
2019-04-05AE61430ND