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EWG's Tap Water Database — 2021 UPDATE

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trans-1,2-Dichloroethylene

Glendora Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 60 ppb

The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for trans-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
2014-03-049588-020-1005ND
2014-03-049588-008-1020ND
2014-03-049588-006-0915ND
2014-09-099588-015-1010ND
2014-09-099588-009-0925ND
2014-09-099588-007-1030ND
2014-09-179588-010-0950ND
2015-03-259588-002-0910ND
2015-03-259588-008-0930ND
2015-03-259588-020-0900ND
2015-03-259588-006-0955ND
2015-09-099588-007-0940ND
2015-09-099588-015-1025ND
2015-09-099588-010-1010ND
2015-09-099588-009-0925ND
2016-03-039588-020-0920ND
2016-03-039588-002-0930ND
2016-03-039588-006-1000ND
2016-03-039588-008-0940ND
2016-09-089588-009-1015ND
2016-09-089588-007-0930ND
2016-09-089588-010-0940ND
2016-09-089588-015-0955ND
2017-03-029588-002-0800ND
2017-03-029588-006-0835ND
2017-03-029588-020-0755ND
2017-03-029588-008-0810ND
2017-09-079588-015-0940ND
2017-09-079588-007-0920ND
2017-09-079588-010-0930ND
2017-09-079588-009-0850ND
2018-03-079588-020-0835ND
2018-03-079588-008-0850ND
2018-03-079588-002-0840ND
2018-03-079588-006-0910ND
2018-09-149588-009-0925ND
2018-09-149588-015-1050ND
2018-09-149588-010-1025ND
2018-09-149588-007-1005ND
2019-03-139588-020-0810ND
2019-03-139588-006-0845ND
2019-03-139588-008-0825ND
2019-03-139588-002-0815ND
2019-09-199588-007-0820ND
2019-09-199588-009-0910ND
2019-09-249588-010-1350ND
2019-09-249588-015-1335ND