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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020ND10ND
2021ND20ND
2022ND10ND
2023ND30ND

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
2019-09-09EHS1900045299-POCND
2020-12-14EHS2000286572-SR-1ND
2021-08-17EHS2100082063POCND
2021-09-13EHS2100088686-01ND
2022-07-05EHS2200031120-SR-1ND
2023-08-14EHS2300047184-SR2ND
2023-09-13EHS2300053516-01ND
2023-10-242316294-001ND