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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

Upper Southampton Mun Authority

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016ND10ND
2017ND20ND
2018ND10ND
2019ND10ND

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
2014-03-06L4939391-1ND
2014-03-06L4939390-1ND
2014-03-06L4939390-2ND
2015-03-1612502412ND
2016-03-1113973488ND
2017-03-2115781000ND
2017-03-2915780931ND
2018-01-118000210-01ND
2019-01-039000206-01ND