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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Jug Mountain Ranch Subdivision

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.

 

10

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
2015N/A00N/A
2016ND10ND
2017ND10ND
2018ND40ND
2019ND40ND

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
2016-10-18V1648027ND
2017-10-24V1749857ND
2018-03-27V1813227ND
2018-04-20V18/17532ND
2018-07-15V1833371ND
2018-10-07V1849957ND
2019-01-20V1902935ND
2019-04-10V1916137ND
2019-07-21V1935523ND
2019-10-15V1952206ND