Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

State College Boro Water Auth.

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND50ND
2021ND50ND
2022ND30ND
2023ND80ND

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
2018-02-148B14177-01ND
2019-02-129B12139-01ND
2020-02-1221735634.00ND
2020-02-1221735633.00ND
2020-02-1221735632.00ND
2020-02-1221735631.00ND
2020-02-1221735630.00ND
2021-02-1623953998.00ND
2021-04-0724321972.00ND
2021-08-1625098839.00ND
2021-09-1325291242.00ND
2021-11-1525654888.00ND
2022-02-1526182288.00ND
2022-09-0127520791.00ND
2022-11-1627890868.00ND
2023-02-1428415058.00ND
2023-05-1628981579.00ND
2023-08-1429577817.00ND
2023-11-1330139900.00ND
2023-12-2030314238.00ND
2023-12-2030314301.00ND
2023-12-2030314259.00ND
2023-12-2030314280.00ND