trans-1,2-Dichloroethylene
Green Acres W/a-south
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 |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
---|---|---|
2014-01-21 | 140122-034VO | ND |
2014-04-14 | 140415-013VO | ND |
2014-07-23 | 140724-009VO | ND |
2014-10-13 | 141014-009VO | ND |
2015-02-24 | 150225-002VO | ND |
2015-04-20 | 150421-024VO | ND |
2015-07-20 | 150721-025VO | ND |
2015-10-27 | 151028-001VO | ND |
2016-02-22 | 160223-016VO | ND |
2016-04-11 | 160412-005VO | ND |
2016-09-26 | 160927-011VO | ND |
2016-12-06 | 161207-024VO | ND |
2017-03-01 | 170302-010VO | ND |
2017-05-15 | 170516-012VO | ND |
2017-07-24 | 170725-017VO | ND |
2017-11-14 | 171115-002VO | ND |
2018-03-20 | 180321-001VO | ND |
2018-04-24 | 180425-014VO | ND |
2018-08-06 | 180807-005VO | ND |
2018-10-29 | 181030-005VO | ND |
2019-02-19 | 190220-002VO | ND |
2019-04-23 | 190424-013VO | ND |
2019-08-05 | 190806-004VO | ND |