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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Quint-mar Water Authority

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
2014ND20ND
2015N/A00N/A
2016ND60ND
2017ND20ND
2018N/A00N/A
2019ND90ND

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
2014-02-12AA88470ND
2014-02-13AA88469ND
2016-06-14AB12487ND
2016-06-14AB12488ND
2016-06-14AB12486ND
2016-06-14AB12490ND
2016-06-14AB12489ND
2016-06-14AB12491ND
2017-01-26AB17481ND
2017-01-26AB17480ND
2019-02-05AB32817ND
2019-02-05AB32818ND
2019-02-05AB32816ND
2019-02-05AB32815ND
2019-02-05AB32814ND
2019-02-05AB32813ND
2019-02-05AB32812ND
2019-04-17AB34290ND
2019-04-17AB34289ND