Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

trans-1,2-Dichloroethylene

Great Oaks Water Company Inc.

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND70ND
2015ND20ND
2016ND150ND
2017ND70ND
2018ND20ND
2019ND150ND

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
2014-03-279590-013-1030ND
2014-05-159590-013-1115ND
2014-08-259590-007-0855ND
2014-08-259590-022-1505ND
2014-08-259590-021-1545ND
2014-08-259590-010-1035ND
2014-08-279590-013-1230ND
2015-09-229590-007-0850ND
2015-09-229590-013-1000ND
2016-05-259590-025-1415ND
2016-08-229590-004-1230ND
2016-08-229590-011-1325ND
2016-08-229590-009-1410ND
2016-08-249590-018-1315ND
2016-08-249590-013-1230ND
2016-08-249590-015-1450ND
2016-08-249590-023-1405ND
2016-08-259590-001-1205ND
2016-08-259590-019-1350ND
2016-08-259590-008-1255ND
2016-08-259590-002-1435ND
2016-09-069590-007-1400ND
2016-09-289590-025-1400ND
2016-11-029590-025-1115ND
2017-03-089590-025-0930ND
2017-04-139590-006-1000ND
2017-06-019590-010-1030ND
2017-08-309590-007-1030ND
2017-08-309590-021-1510ND
2017-08-319590-025-1440ND
2017-08-319590-022-1515ND
2018-08-299590-010-0930ND
2018-08-309590-007-0930ND
2019-08-289590-001-1420ND
2019-08-289590-007-1120ND
2019-08-289590-006-0920ND
2019-08-289590-002-1030ND
2019-08-299590-018-1000ND
2019-08-299590-015-0850ND
2019-08-299590-009-0745ND
2019-08-299590-008-1410ND
2019-08-299590-004-1310ND
2019-09-059590-023-1400ND
2019-09-059590-019-1145ND
2019-09-059590-025-1250ND
2019-09-129590-013-1430ND
2019-09-129590-011-1300ND
2019-09-129590-010-1145ND