cis-1,2-Dichloroethylene
Mount Houston Road Municipal Utility District
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.
11
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 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 |
|---|---|---|
| 2015-08-06 | AD02978 | ND |
| 2015-10-28 | AD12014 | ND |
| 2016-03-29 | AD30934 | ND |
| 2016-03-29 | AD30922 | ND |
| 2016-06-21 | AD41381 | ND |
| 2017-05-30 | AD85901 | ND |
| 2017-09-14 | AD96269 | ND |
| 2018-06-18 | AE30246 | ND |
| 2018-06-18 | AE30242 | ND |
| 2019-07-15 | AE74417 | ND |
| 2019-07-15 | AE74415 | ND |