trans-1,2-Dichloroethylene
Village Water System
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 36 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 18 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2019-02-11 | 35447880008 | ND |
| 2019-02-11 | 35447880008 | ND |
| 2019-02-11 | 35447880007 | ND |
| 2019-02-11 | 35447880006 | ND |
| 2019-02-11 | 35447880005 | ND |
| 2019-02-11 | 35447880004 | ND |
| 2019-02-11 | 35447880003 | ND |
| 2019-02-11 | 35447880002 | ND |
| 2019-02-11 | 35447880001 | ND |
| 2019-02-11 | 35447880001 | ND |
| 2019-02-11 | 35447880002 | ND |
| 2019-02-11 | 35447880003 | ND |
| 2019-02-11 | 35447880004 | ND |
| 2019-02-11 | 35447880005 | ND |
| 2019-02-11 | 35447880006 | ND |
| 2019-02-11 | 35447880007 | ND |
| 2019-03-25 | 35457558009 | ND |
| 2019-03-25 | 35457558001 | ND |
| 2019-03-25 | 35457558008 | ND |
| 2019-03-25 | 35457558007 | ND |
| 2019-03-25 | 35457558006 | ND |
| 2019-03-25 | 35457558005 | ND |
| 2019-03-25 | 35457558003 | ND |
| 2019-03-25 | 35457558004 | ND |
| 2019-03-25 | 35457558002 | ND |
| 2019-03-25 | 35457558003 | ND |
| 2019-03-25 | 35457558004 | ND |
| 2019-03-25 | 35457558005 | ND |
| 2019-03-25 | 35457558006 | ND |
| 2019-03-25 | 35457558008 | ND |
| 2019-03-25 | 35457558009 | ND |
| 2019-03-25 | 35457558001 | ND |
| 2019-03-25 | 35457558002 | ND |
| 2019-03-25 | 35457558007 | ND |
| 2019-04-01 | 35458991001 | ND |
| 2019-04-01 | 35458991001 | ND |
| 2020-11-19 | 35593860001 | ND |
| 2022-03-15 | 35704999005 | ND |
| 2022-03-15 | 35704999001 | ND |
| 2022-03-15 | 35704999004 | ND |
| 2022-03-15 | 35704999006 | ND |
| 2022-03-21 | 35705852005 | ND |
| 2022-03-21 | 35705852004 | ND |
| 2022-03-21 | 35705852003 | ND |
| 2022-03-21 | 35705852002 | ND |
| 2022-03-21 | 35705852001 | ND |
| 2022-03-29 | 35707348001 | ND |
| 2022-03-29 | 35707348007 | ND |
| 2022-03-29 | 35707348006 | ND |
| 2022-03-29 | 35707348005 | ND |
| 2022-03-29 | 35707348004 | ND |
| 2022-03-29 | 35707348003 | ND |
| 2022-03-29 | 35707348002 | ND |
| 2022-05-02 | 35714816001 | ND |
| 2022-12-06 | 35765354006 | ND |
| 2023-11-27 | 35844622002 | ND |