Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

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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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND40ND
2021ND40ND
2022ND40ND
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
2018-01-1038158601ND
2018-04-0439069901ND
2018-07-0340201501ND
2018-10-0441308901ND
2019-01-0942495701ND
2019-04-1043656201ND
2019-07-1645013801ND
2019-10-1046829601ND
2020-02-1221682287.00ND
2020-04-0922039228.00ND
2020-07-0922623454.00ND
2020-10-0623198008.00ND
2021-01-0823727851.00ND
2021-04-0624263161.00ND
2021-08-1225038898.00ND
2021-10-1325420764.00ND
2022-01-0625957944.00ND
2022-04-0626479746.00ND
2022-07-1327053538.00ND
2022-10-0527656700.00ND
2023-01-0528187437.00ND
2023-04-0528718732.00ND
2023-07-0629317605.00ND
2023-10-0529901716.00ND