Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Sevier County Water Association

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND30ND
2021ND20ND
2022ND20ND
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
2018-05-2118144005701ND
2018-07-2418207002001ND
2019-04-2919122009701ND
2019-08-2819241001401ND
2020-05-2620149002509ND
2020-07-2220204001801ND
2020-08-1720233006801ND
2021-04-0621098007201ND
2021-08-0221217000201ND
2022-04-05O196358-VOC-1ND
2022-07-05O199205-VOC-1ND
2023-04-05O207333-VOC-1ND
2023-07-03O210122-VOC-1ND