Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Holly Acres

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
2018ND30ND
2019ND20ND
2020ND20ND
2021ND30ND
2022ND30ND
2023ND20ND

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
2018-02-207071-022018-E02VND
2018-08-097071-080918-E01VND
2018-08-097071-080918-E02VND
2019-08-157071-081519-E01VND
2019-08-157071-081519-E02VND
2020-08-187071-081820-E01VND
2020-08-187071-081820-E02VND
2021-08-107071-081021-E01VND
2021-08-107071-081021-E02VND
2021-10-207071-102021-E02VND
2022-01-117071-011122-E02VND
2022-07-137071-071322-E01VND
2022-07-137071-071322-E02VND
2023-08-03752-10104-1ND
2023-08-09752-10356-1ND