cis-1,2-Dichloroethylene
Tempe Water Supply Corporation 1
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.
25
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 | 3 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 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 |
|---|---|---|
| 2014-01-15 | AC38992 | ND |
| 2014-01-15 | AC38994 | ND |
| 2014-01-15 | AC39002 | ND |
| 2015-02-24 | AC81713 | ND |
| 2015-02-24 | AC81699 | ND |
| 2015-02-24 | AC81709 | ND |
| 2015-02-24 | AC81697 | ND |
| 2015-09-10 | AD06572 | ND |
| 2015-12-03 | AD15456 | ND |
| 2016-02-25 | AD25795 | ND |
| 2016-02-25 | AD25785 | ND |
| 2016-02-25 | AD25783 | ND |
| 2016-02-25 | AD25791 | ND |
| 2017-06-01 | AD86432 | ND |
| 2017-06-01 | AD86412 | ND |
| 2017-06-01 | AD86408 | ND |
| 2017-06-01 | AD86426 | ND |
| 2018-02-13 | AE13596 | ND |
| 2018-02-13 | AE13554 | ND |
| 2018-02-13 | AE13556 | ND |
| 2018-02-13 | AE13592 | ND |
| 2019-02-26 | AE55996 | ND |
| 2019-02-26 | AE55992 | ND |
| 2019-02-26 | AE56002 | ND |
| 2019-02-26 | AE56004 | ND |