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EWG's Tap Water Database — 2021 UPDATE

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1,1-Dichloroethylene

Star-mindingall Water Authority

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-16140417030-1ND
2014-07-17140718019-1ND
2015-07-15150716024-1ND
2015-07-15150716024-2ND
2016-04-15160415037-1ND
2016-07-14160714049-1ND
2017-04-28170501006-1ND
2017-07-12170710032-1ND
2018-06-18180618038-1ND
2018-07-09180709042-001ND
2019-04-1119040442-001AAND
2019-07-0820111585001_IVOCND