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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

City of Beloit

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.

 

30

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
2014ND100ND
2015ND60ND
2016ND30ND
2017ND70ND
2018ND20ND
2019ND20ND

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
2014-02-12770322ND
2014-02-26772270ND
2014-02-26772256ND
2014-02-26772250ND
2014-02-26772259ND
2014-02-26772252ND
2014-02-26772243ND
2014-04-09779189ND
2014-07-17803882ND
2014-10-20826411ND
2015-02-18844273ND
2015-02-18844274ND
2015-02-18844275ND
2015-04-29857820ND
2015-07-08869710ND
2015-10-14889091ND
2016-02-10905182ND
2016-02-10905180ND
2016-02-10905181ND
2017-02-28975341ND
2017-02-28975355ND
2017-02-28975344ND
2017-02-28975351ND
2017-02-28975337ND
2017-02-28975334ND
2017-02-28975347ND
2018-03-071044056ND
2018-03-071044054ND
2019-06-261130749ND
2019-06-261130747ND