Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Tallulah Water System

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019N/A00N/A
2020N/A00N/A
2021ND40ND
2022N/A00N/A
2023ND40ND

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
2018-10-2235426078002ND
2018-10-2235426078003ND
2018-10-2235426078004ND
2018-10-2235426078005ND
2018-10-2235426078002ND
2018-10-2235426078003ND
2018-10-2235426078004ND
2018-10-2235426078005ND
2021-11-0135674847001ND
2021-11-0135674847002ND
2021-11-0135674847003ND
2021-11-0135674847004ND
2023-03-1735787887002ND
2023-04-1735794067001ND
2023-07-1735814095001ND
2023-10-0235831872001ND