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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Lee County Utilities

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND50ND
2015ND10ND
20160.0900 ppb110.0900 ppb
2017ND50ND
2018ND40ND
20190.0450 ppb21ND - 0.0900 ppb

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 Result
2014-02-05ND
2014-03-03ND
2014-04-16ND
2014-04-16ND
2014-10-08ND
2015-10-12ND
2016-10-030.0900 ppb
2017-02-01ND
2017-03-02ND
2017-04-03ND
2017-04-03ND
2017-10-05ND
2018-06-11ND
2018-07-09ND
2018-10-01ND
2018-10-16ND
2019-01-070.0900 ppb
2019-10-07ND