cis-1,2-Dichloroethylene
New Design - Frederick County
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.
15
Samples
0
Samples exceeding legal limit (MCL)
0
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 | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-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 |
|---|---|---|
| 2014-04-01 | 0100030_04_10797 | ND |
| 2014-05-27 | 0100030_01_05176 | ND |
| 2015-04-01 | E15003102001 | ND |
| 2015-09-10 | E16001042006 | ND |
| 2016-04-27 | 2140220007 | ND |
| 2016-06-06 | E16004621004 | ND |
| 2017-04-05 | E17003943008 | ND |
| 2017-04-05 | 2221226006 | ND |
| 2018-04-12 | E18003685006 | ND |
| 2018-05-15 | AP06061 | ND |
| 2018-06-26 | E18004642001 | ND |
| 2019-04-11 | AQ05230 | ND |
| 2019-05-07 | E19003760006 | ND |
| 2019-08-21 | E20000723001 | ND |
| 2019-12-06 | AQ17566 | ND |