Know Your Environment. Protect Your Health.

cis-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

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
2018-03-138023741-01ND
2018-03-138023741-02ND
2019-03-199024667-02ND
2019-03-199024667-01ND
2020-03-0421896261.00ND
2020-03-1121896283.00ND
2020-03-1821896329.00ND
2020-03-1821896318.00ND
2021-01-0623762414.00ND
2021-01-1323762437.00ND
2021-01-2023762460.00ND
2021-01-2023762483.00ND
2022-01-1025992204.00ND
2022-01-1925992225.00ND
2022-01-2525992248.00ND
2022-01-2525992269.00ND
2023-01-0428221618.00ND
2023-01-0928221641.00ND
2023-01-1828221664.00ND
2023-01-1828221687.00ND
2023-02-2228396007.00ND