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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Southern Nevada Water System

1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.

 

55

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND90ND
2016ND110ND
2017ND90ND
2018ND100ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 70 ppb

The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-1714030266-004ND
2014-03-1714030266-005ND
2014-06-1914060434-004ND
2014-06-1914060434-005ND
2014-09-1614090286-004ND
2014-09-1614090286-005ND
2014-12-2214120389-005ND
2014-12-2214120389-004ND
2015-05-0415040554-002ND
2015-06-2215060404-004ND
2015-06-2215060404-005ND
2015-09-2115090335-004ND
2015-09-2115090335-005ND
2015-09-2815090449-005ND
2015-09-2815090449-004ND
2015-12-0715120049-005ND
2015-12-0715120049-004ND
2016-03-0716030052-004ND
2016-03-0716030052-005ND
2016-06-06S1601186003ND
2016-06-06S1601186003ND
2016-06-06S1601186004ND
2016-06-06S1601186004ND
2016-09-12S1602499004ND
2016-09-12S1602499003ND
2016-12-19S1606919004ND
2016-12-19S1606919002ND
2016-12-19S1606919003ND
2017-03-13S1607065002ND
2017-03-13S1607065003ND
2017-03-20S1701773004ND
2017-06-05S1701906003ND
2017-06-05S1701906004ND
2017-09-05S1704156003ND
2017-09-05S1704156004ND
2017-12-05S1706371003ND
2017-12-05S1706371004ND
2018-03-05S1708624004ND
2018-03-05S1708624003ND
2018-03-05S1708624002ND
2018-06-05S1801745003ND
2018-06-05S1801745004ND
2018-09-04S1803824003ND
2018-09-04S1803824004ND
2018-12-11S1806206002ND
2018-12-11S1806206003ND
2018-12-11S1806206004ND
2019-03-05S1809855002ND
2019-03-05S1809855003ND
2019-06-04S1902017003ND
2019-06-04S1902017004ND
2019-09-04S1925728004ND
2019-09-04S1925728003ND
2019-12-10S1967023004ND
2019-12-10S1967023003ND