Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

City of Troy

NOTE: City of Troy purchases water from City of Temple which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by City of Temple.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND20ND
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

NOTE: City of Troy purchases water from City of Temple which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by City of Temple.

Date Lab ID Result
2018-08-10AE36484ND
2019-07-23AE75563ND
2020-07-14AF19237ND
2021-07-08AF61076ND
2022-07-13AG04530ND
2023-07-06AG47322ND