Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Nash Forreston Water Supply Corporation

NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by City of Waxahachie.

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
2018ND20ND
2019ND20ND
2020ND20ND
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

NOTE: Nash Forreston Water Supply Corporation purchases water from City of Waxahachie which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by City of Waxahachie.

Date Lab ID Result
2018-01-25Q1802982010ND
2018-08-13Q1832216003ND
2019-04-29Q1916965011ND
2019-07-25Q1947719001ND
2020-08-17Q2032738017ND
2020-08-17Q2032738019ND
2021-09-16Q2125453010ND
2021-09-16Q2125453012ND
2022-01-12Q2201052009ND
2022-08-16Q2224047002ND
2023-09-05Q2338122002ND
2023-11-20Q2349758003ND