trans-1,2-Dichloroethylene
City of Kingsburg
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 | 7 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 7 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-25 | 5867-013-1155 | ND |
| 2014-12-18 | 5867-006-1205 | ND |
| 2014-12-18 | 5867-009-1225 | ND |
| 2014-12-18 | 5867-010-1155 | ND |
| 2014-12-18 | 5867-011-1130 | ND |
| 2014-12-18 | 5867-012-1115 | ND |
| 2014-12-18 | 5867-013-1145 | ND |
| 2015-12-17 | 5867-007-1300 | ND |
| 2018-01-24 | 5810-006-1130 | ND |
| 2018-01-24 | 5810-009-1010 | ND |
| 2018-01-24 | 5810-010-1045 | ND |
| 2018-01-24 | 5810-011-0930 | ND |
| 2018-01-24 | 5810-012-0950 | ND |
| 2018-01-24 | 5810-013-1100 | ND |
| 2018-12-11 | 5810-007-0950 | ND |