cis-1,2-Dichloroethylene
Town of Indian Head
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.
9
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 | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-06-26 | 0080020_07_05603 | ND |
| 2015-09-09 | E16001029004 | ND |
| 2016-03-22 | E16003502004 | ND |
| 2016-03-22 | E16003502006 | ND |
| 2017-03-22 | E17003695006 | ND |
| 2019-01-30 | E19002363001 | ND |
| 2019-04-24 | E19003568001 | ND |
| 2019-08-06 | E20000533001 | ND |
| 2019-10-24 | E20001596001 | ND |