Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Lehigh County Authority Allentown Division

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND40ND
2021ND40ND
2022ND40ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-03-138023741-01ND
2018-03-138023741-02ND
2019-03-199024667-02ND
2019-03-199024667-01ND
2020-03-0421896278.00ND
2020-03-1121896287.00ND
2020-03-1821896301.00ND
2020-03-1821896311.00ND
2021-01-0623762415.00ND
2021-01-1323762438.00ND
2021-01-2023762461.00ND
2021-01-2023762484.00ND
2022-01-1025992205.00ND
2022-01-1925992226.00ND
2022-01-2525992249.00ND
2022-01-2525992270.00ND
2023-01-0428221625.00ND
2023-01-0928221648.00ND
2023-01-1828221671.00ND
2023-01-1828221694.00ND
2023-02-2228396014.00ND