Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Prineville, City 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
2020ND10ND
2021ND10ND
2022ND60ND
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
2018-11-061884729-VND
2019-05-201935386-VND
2019-05-201935392-VND
2019-05-201935387-VND
2020-03-19X040779-VND
2021-02-08X044752-VND
2022-04-2622-27123-VND
2022-04-2622-27115-VND
2022-05-12X050385-VND
2022-05-2422-33327-VND
2022-05-2422-33318-VND
2022-05-2422-33319-VND