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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Holly Tree Acres System 1

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.

 

16

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
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018ND60ND
2019ND80ND

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
2015-01-16V5A0375-02ND
2015-01-16V5A0375-03ND
2018-01-117040260001-VOCND
2018-01-117040267001-VOCND
2018-02-262298242001ND
2018-04-237049760001-VOCND
2018-09-267066191001-VOCND
2018-10-017067159001-VOCND
2019-01-167077040001-VOCND
2019-01-307078177001-VOCND
2019-04-247087324001-VOCND
2019-06-257095254001-VOCND
2019-06-257095256001-VOCND
2019-08-2170102407001-VOCND
2019-08-2170102414001-VOCND
2019-10-2270109566001-VOCND