cis-1,2-Dichloroethylene
Chimney Hill
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.
20
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 | 8 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-03-18 | 1403-04810-005 | ND |
| 2014-03-18 | 1403-04810-004 | ND |
| 2014-03-18 | 1403-04810-003 | ND |
| 2014-03-18 | 1403-04810-002 | ND |
| 2014-03-18 | 1403-04810-001 | ND |
| 2014-06-11 | 1406-11214-004 | ND |
| 2014-08-12 | 1408-16295-004 | ND |
| 2014-11-12 | 1411-23816-004 | ND |
| 2015-02-24 | 1502-03311-004 | ND |
| 2015-04-22 | 1504-07351-004 | ND |
| 2015-09-22 | 1509-20644-004 | ND |
| 2015-12-08 | 1512-26354-004 | ND |
| 2016-06-21 | 1606-13062-001 | ND |
| 2017-03-21 | 1703-05675-005 | ND |
| 2017-03-21 | 1703-05675-004 | ND |
| 2017-03-21 | 1703-05675-003 | ND |
| 2017-03-21 | 1703-05675-002 | ND |
| 2017-03-21 | 1703-05675-001 | ND |
| 2018-02-26 | 1802-04330-001 | ND |
| 2019-02-12 | 1902-03303-001 | ND |