Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Altoona Water Authority

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.

 

37

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND70ND
2021ND80ND
2022ND60ND
2023ND50ND

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
2018-08-288H28046-01ND
2018-08-288H28044-01ND
2018-08-288H28051-01ND
2018-08-288H28032-01ND
2018-08-288H28031-01ND
2018-08-288H28047-01ND
2019-11-069K07058-01ND
2019-11-069K07058-03ND
2019-11-079K07074-01ND
2019-11-079K07072-01ND
2019-12-059L05126-01ND
2020-02-0621729176.00ND
2020-08-0522869707.00ND
2020-08-0522869706.00ND
2020-08-0522869705.00ND
2020-08-1022869918.00ND
2020-08-1022869919.00ND
2020-08-1022869917.00ND
2021-07-0124897505.00ND
2021-07-0824897526.00ND
2021-08-1025092083.00ND
2021-08-1025092027.00ND
2021-08-1025092082.00ND
2021-08-1025092028.00ND
2021-08-1025092029.00ND
2021-12-1325828702.00ND
2022-02-2426177239.00ND
2022-08-1627309601.00ND
2022-08-1627309677.00ND
2022-08-1627308842.00ND
2022-08-1627309643.00ND
2022-11-1027885524.00ND
2023-07-2629371569.00ND
2023-07-2629371526.00ND
2023-07-2629371482.00ND
2023-07-2629371548.00ND
2023-07-2629371504.00ND