cis-1,2-Dichloroethylene
Cedar Hills Water Association
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.
10
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 | 4 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-03-21 | G14030536-001D | ND |
| 2014-11-20 | G14110327-001 V | ND |
| 2015-03-18 | G15030402-001F | ND |
| 2015-05-12 | G15050230-001C | ND |
| 2015-09-22 | G15090429-001C | ND |
| 2015-12-01 | G15120003-001C | ND |
| 2016-12-19 | G16120265-001A | ND |
| 2017-02-27 | G17020404-001F | ND |
| 2017-02-27 | G17020405-001C | ND |
| 2018-10-03 | G18100105-001A | ND |