Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Jordanelle Special Service District

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND60ND
2020ND50ND
2021ND70ND
2022ND60ND
2023ND80ND

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
2018-01-10ND
2018-04-09ND
2018-07-03ND
2018-07-18ND
2018-10-16ND
2019-01-08ND
2019-04-23ND
2019-06-27ND
2019-06-27ND
2019-07-29ND
2019-10-16ND
2020-01-13ND
2020-04-15ND
2020-07-29ND
2020-08-03ND
2020-10-20ND
2021-01-11ND
2021-01-19ND
2021-04-12ND
2021-06-29ND
2021-07-13ND
2021-09-20ND
2021-10-19ND
2022-01-11ND
2022-04-06ND
2022-07-14ND
2022-07-14ND
2022-07-19ND
2022-10-05ND
2023-01-18ND
2023-04-06ND
2023-05-24ND
2023-05-24ND
2023-06-05ND
2023-07-17ND
2023-08-10ND
2023-10-24ND