trans-1,2-Dichloroethylene
Midvale City 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 11 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 9 | 0 | ND |
2017 | ND | 13 | 0 | ND |
2018 | ND | 12 | 0 | ND |
2019 | ND | 10 | 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 | Result |
---|---|
2014-01-14 | ND |
2014-01-14 | ND |
2014-05-01 | ND |
2014-05-01 | ND |
2014-05-29 | ND |
2014-05-29 | ND |
2014-09-29 | ND |
2014-09-29 | ND |
2014-09-29 | ND |
2014-10-27 | ND |
2014-10-27 | ND |
2015-03-26 | ND |
2015-03-26 | ND |
2015-05-04 | ND |
2015-05-04 | ND |
2015-07-30 | ND |
2015-07-30 | ND |
2015-07-30 | ND |
2015-07-30 | ND |
2015-10-14 | ND |
2015-10-14 | ND |
2016-02-10 | ND |
2016-02-10 | ND |
2016-06-13 | ND |
2016-06-13 | ND |
2016-08-02 | ND |
2016-08-09 | ND |
2016-08-09 | ND |
2016-10-06 | ND |
2016-10-06 | ND |
2017-01-18 | ND |
2017-01-18 | ND |
2017-05-04 | ND |
2017-05-08 | ND |
2017-05-10 | ND |
2017-06-09 | ND |
2017-07-14 | ND |
2017-07-19 | ND |
2017-07-19 | ND |
2017-07-19 | ND |
2017-10-17 | ND |
2017-10-17 | ND |
2017-10-17 | ND |
2018-01-11 | ND |
2018-01-11 | ND |
2018-04-10 | ND |
2018-04-10 | ND |
2018-04-13 | ND |
2018-04-13 | ND |
2018-04-24 | ND |
2018-04-24 | ND |
2018-06-14 | ND |
2018-07-05 | ND |
2018-07-05 | ND |
2018-12-13 | ND |
2019-03-15 | ND |
2019-03-15 | ND |
2019-03-25 | ND |
2019-03-25 | ND |
2019-06-12 | ND |
2019-06-12 | ND |
2019-07-10 | ND |
2019-07-10 | ND |
2019-10-10 | ND |
2019-10-10 | ND |