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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Mcnair-stampley W/a #3

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
2016ND30ND
2017ND40ND
2018ND40ND
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
2015-08-24150826-001VOND
2015-11-02151103-004VOND
2016-03-08160309-005VOND
2016-05-16160518-027VOND
2016-07-19160720-027VOND
2017-03-06170307-014VOND
2017-05-22170523-016VOND
2017-08-03170804-003VOND
2017-10-30171031-022VOND
2018-02-05180206-017VOND
2018-05-02180503-019VOND
2018-08-13180814-023VOND
2018-10-15181016-015VOND
2019-02-27190228-008VOND
2019-04-29190430-002VOND
2019-08-19190820-004VOND