trans-1,2-Dichloroethylene
City of Reno
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 | 2 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 8 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 6 | 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 |
|---|---|---|
| 2014-05-29 | Q1418403003 | ND |
| 2014-05-29 | Q1418403001 | ND |
| 2015-03-02 | Q1507706007 | ND |
| 2015-03-02 | Q1507706006 | ND |
| 2015-03-02 | Q1507706003 | ND |
| 2015-03-02 | Q1507706002 | ND |
| 2015-05-04 | Q1516121007 | ND |
| 2015-12-14 | Q1549780003 | ND |
| 2016-02-29 | Q1608185006 | ND |
| 2016-02-29 | Q1608185001 | ND |
| 2016-02-29 | Q1608185003 | ND |
| 2016-05-31 | Q1621278005 | ND |
| 2016-05-31 | Q1621278004 | ND |
| 2016-05-31 | Q1621278002 | ND |
| 2016-09-26 | Q1640031003 | ND |
| 2016-12-14 | Q1654571002 | ND |
| 2017-02-13 | Q1706086024 | ND |
| 2017-02-13 | Q1706086007 | ND |
| 2017-02-13 | Q1706086006 | ND |
| 2017-08-28 | Q1738760003 | ND |
| 2017-08-28 | Q1738760025 | ND |
| 2017-08-28 | Q1738760023 | ND |
| 2017-11-07 | Q1756952002 | ND |
| 2018-04-23 | Q1816387016 | ND |
| 2018-04-23 | Q1816387001 | ND |
| 2018-04-23 | Q1816387013 | ND |
| 2018-04-23 | Q1816387011 | ND |
| 2018-04-23 | Q1816387017 | ND |
| 2018-07-30 | Q1829993003 | ND |
| 2019-04-16 | Q1915135003 | ND |
| 2019-04-16 | Q1915135013 | ND |
| 2019-04-16 | Q1915135011 | ND |
| 2019-04-16 | Q1915135008 | ND |
| 2019-04-16 | Q1915135007 | ND |
| 2019-04-16 | Q1915135004 | ND |