Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Duncannon Municipal Water

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.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND40ND
2021ND60ND
2022ND10ND
2023ND40ND

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
2018-08-228H23016-02ND
2018-11-138K15056-01ND
2019-08-199080661-01ND
2020-03-3021991374.00ND
2020-03-3021991375.00ND
2020-03-3021991376.00ND
2020-08-0422967121.00ND
2021-02-1524027742.00ND
2021-03-0824214575.00ND
2021-03-2224214642.00ND
2021-06-0124798984.00ND
2021-08-0325189163.00ND
2021-12-2825914150.00ND
2022-10-2627795520.00ND
2023-07-3129465060.00ND
2023-07-3129465029.00ND
2023-07-3129465080.00ND
2023-07-3129465009.00ND