trans-1,2-Dichloroethylene
Veolia - Mechanicsburg Pennsylvania
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 7 | 0 | ND |
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 |
|---|---|---|
| 2018-02-23 | 2297488001 | ND |
| 2018-02-23 | 2297488002 | ND |
| 2018-05-01 | 1810634-01 | ND |
| 2018-08-07 | 1821380-01 | ND |
| 2018-11-12 | 3000062001 | ND |
| 2019-01-15 | H9A0708-01 | ND |
| 2019-01-15 | H9A0708-02 | ND |
| 2019-04-10 | H9D0711-01 | ND |
| 2019-08-06 | H9H0636-01 | ND |
| 2019-08-07 | H9H0668-01 | ND |
| 2019-11-05 | H9K0519-01 | ND |
| 2020-02-05 | 21790405.00 | ND |
| 2020-02-05 | 21790362.00 | ND |
| 2020-05-06 | 22353580.00 | ND |
| 2020-08-05 | 22940787.00 | ND |
| 2020-11-04 | 23483730.00 | ND |
| 2021-01-19 | 23836181.00 | ND |
| 2021-01-19 | 23836125.00 | ND |
| 2021-05-11 | 24578445.00 | ND |
| 2021-07-21 | 24965388.00 | ND |
| 2021-11-11 | 25712691.00 | ND |
| 2022-02-10 | 26237346.00 | ND |
| 2022-02-10 | 26237313.00 | ND |
| 2022-05-10 | 26786879.00 | ND |
| 2022-08-11 | 27382544.00 | ND |
| 2022-11-08 | 27946585.00 | ND |
| 2023-02-13 | 28469997.00 | ND |
| 2023-02-13 | 28470072.00 | ND |
| 2023-02-13 | 28470096.00 | ND |
| 2023-02-13 | 28470027.00 | ND |
| 2023-04-19 | 28844031.00 | ND |
| 2023-07-05 | 29440201.00 | ND |
| 2023-11-09 | 30195323.00 | ND |