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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

Woodland-davis Clean Water Agency

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.

 

12

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
2016ND30ND
2017ND40ND
2018ND40ND
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
2016-05-245810-002-1055ND
2016-07-135810-002-0930ND
2016-11-095810-002-1200ND
2017-01-125810-002-1030ND
2017-05-105810-002-1130ND
2017-07-125810-002-1202ND
2017-10-115810-002-1153ND
2018-01-095810-002-1204ND
2018-05-095810-002-1100ND
2018-07-115810-002-1341ND
2018-10-105810-002-1045ND
2019-01-095810-002-1040ND