Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Midland-lonaconing

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022N/A00N/A
2023N/A00N/A

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
2018-04-25E18003852001ND
2018-04-25E18003852004ND
2018-04-25E18003852006ND
2019-07-02E20000037004ND
2019-07-02E20000037006ND
2019-07-02E20000037008ND
2020-05-27E20003665001ND
2020-05-27E20003665004ND
2020-05-27E20003665006ND
2021-06-15E21003716004ND
2021-07-26E22000293001ND
2021-07-26E22000293004ND