Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

La Veta, Town of

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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 Result
2018-02-07ND
2018-02-07ND
2018-07-18ND
2018-07-18ND
2019-07-10ND
2019-07-10ND
2020-07-14ND
2020-07-14ND
2021-02-17ND
2021-02-17ND
2021-07-20ND
2021-07-20ND
2022-07-05ND
2022-07-05ND
2023-07-12ND