cis-1,2-Dichloroethylene
City of Corpus Christi
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.
12
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 | 1 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-08-07 | AC62550 | ND |
| 2015-08-13 | AD04130 | ND |
| 2016-09-14 | AD49468 | ND |
| 2017-03-21 | AD76053 | ND |
| 2017-05-16 | AD84466 | ND |
| 2017-07-28 | AD91401 | ND |
| 2017-07-28 | AD91393 | ND |
| 2017-11-14 | AE04787 | ND |
| 2018-02-06 | AE12542 | ND |
| 2018-07-25 | AE34518 | ND |
| 2019-01-23 | AE50977 | ND |
| 2019-07-30 | AE76437 | ND |