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EWG's Tap Water Database — 2021 UPDATE

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cis-1,2-Dichloroethylene

North Lenoir Water Corp

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND110ND
2015ND90ND
2016ND40ND
2017ND70ND
2018ND50ND
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
2014-01-138540-011314-E10VND
2014-04-098540-040914-E10VND
2014-07-088540-070814-E10VND
2014-08-078540-080714-E14VND
2014-08-078540-080714-E13VND
2014-08-078540-080714-E12VND
2014-08-078540-080714-E11VND
2014-08-078540-080714-E09VND
2014-08-078540-080714-E08VND
2014-08-078540-080714-E02VND
2014-10-078540-100714-E10VND
2015-01-12ND
2015-01-12ND
2015-01-12ND
2015-01-12ND
2015-04-07ND
2015-04-07ND
2015-04-07ND
2015-07-13ND
2015-10-07ND
2016-01-068540-010616-E10VND
2016-04-058540-040516-E10VND
2016-07-118540-071116-E10VND
2016-10-198540-101916-E10VND
2017-01-048540-010417-E10VND
2017-08-028540-080217-E11VND
2017-08-028540-080217-E13VND
2017-08-028540-080217-E12VND
2017-08-028540-080217-E09VND
2017-08-028540-080217-E08VND
2017-08-028540-080217-E02VND
2018-01-118540-011118-E15VND
2018-01-118540-011118-E16VND
2018-01-118540-011118-E17VND
2018-04-028540-040218-E18VND
2018-04-028540-040218-E4AVND
2019-06-118540-061119-E14VND