Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Friendship Waterworks

NOTE: Friendship Waterworks purchases water from Adams Waterworks which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by Adams Waterworks.

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
2018N/A00N/A
2019N/A00N/A
2020ND30ND
2021ND10ND
2022ND10ND
2023ND10ND

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: Friendship Waterworks purchases water from Adams Waterworks which is required to test for trans-1,2-dichloroethylene. Sample information shown below was taken by Adams Waterworks.

Date Lab ID Result
2020-08-17462474ND
2020-08-17462477ND
2020-12-07512222ND
2021-02-23548789001ND
2021-02-23548789001ND
2021-05-18562428001ND
2021-08-02575843001ND
2021-10-11588954001ND
2022-08-15637216001ND
2022-09-21644336001ND
2023-05-08677574001ND
2023-05-08677576001ND
2023-08-08693877001ND