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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Deltona Water

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.

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND150ND
2015N/A00N/A
2016N/A00N/A
2017ND110ND
2018N/A00N/A
2019N/A00N/A

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
2014-04-02ND
2014-04-02ND
2014-04-02ND
2014-04-07ND
2014-04-08ND
2014-04-08ND
2014-04-09ND
2014-04-09ND
2014-04-09ND
2014-04-15ND
2014-04-16ND
2014-04-16ND
2014-04-16ND
2014-04-17ND
2014-04-28ND
2017-06-27ND
2017-06-27ND
2017-06-28ND
2017-06-28ND
2017-06-28ND
2017-06-29ND
2017-06-29ND
2017-06-29ND
2017-06-29ND
2017-06-30ND
2017-06-30ND