Know Your Environment. Protect Your Health.

trans-1,2-Dichloroethylene

Perkasie Regional 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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2018-03-068024485-02ND
2018-06-048052857-02ND
2018-09-048084662-02ND
2018-09-178093548-01ND
2018-09-178093548-03ND
2018-09-178093548-02ND
2018-12-038110453-02REND
2019-03-059023322-02ND
2019-06-049053891-02ND
2019-09-039084135-02ND
2019-11-119111441-02ND
2019-11-119111441-03ND
2019-11-119111441-01ND
2019-12-039113323-02ND
2020-03-0321828163.00ND
2020-06-2322393766.00ND
2020-09-0122778500.00ND
2020-09-0122778458.00ND
2020-09-0122778479.00ND
2020-12-0123344558.00ND
2021-03-0224041340.00ND
2021-06-0124619520.00ND
2021-09-2025201404.00ND
2021-09-2025201446.00ND
2021-09-2025201425.00ND
2021-09-2025201467.00ND
2021-12-0725746109.00ND
2022-03-0126270338.00ND
2022-06-2126824210.00ND
2022-08-1627213702.00ND
2022-08-1627213750.00ND
2022-08-1627213727.00ND
2022-09-1927420630.00ND
2022-12-0627980842.00ND
2023-03-0728503191.00ND
2023-06-0629088302.00ND
2023-09-0529681640.00ND
2023-09-1929681643.00ND
2023-09-1929681642.00ND
2023-09-1929681641.00ND
2023-12-0530228260.00ND