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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Arizona Water Company - Pinal Valley

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND110ND
2015ND10ND
2016ND10ND
2017ND110ND
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
2014-05-054050314-01VND
2014-05-054050312-01VND
2014-05-054050311-01VND
2014-05-054050309-01VND
2014-05-054050308-01ND
2014-05-054050306-01ND
2014-05-054050303-01ND
2014-06-104060913-02ND
2014-06-104060913-01ND
2014-06-184061539-01ND
2014-09-034090304-01VND
2015-05-145051251-01ND
2016-04-276042352-01VND
2017-03-137031063-01ND
2017-05-037050545-01VOCND
2017-05-037050544-01VOCND
2017-05-037050541-01VOCND
2017-05-047050644-01VOCND
2017-05-047050640-01VOCND
2017-05-047050636-01VOCND
2017-05-047050632-01VOCND
2017-05-047050621-01VOCND
2017-08-167081780-01VOCND
2017-10-317110133-01VOCND
2018-02-2618B2395-01 VOCND
2019-01-2219A2350-01ND