cis-1,2-Dichloroethylene
Glendale Water Supply Corporation
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.
17
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 | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-05-15 | Q1416518007 | ND |
| 2015-03-12 | Q1509271015 | ND |
| 2015-03-12 | Q1509271013 | ND |
| 2015-12-14 | Q1549639010 | ND |
| 2016-03-22 | Q1611763003 | ND |
| 2016-05-20 | Q1620219001 | ND |
| 2016-06-13 | Q1623595003 | ND |
| 2016-06-13 | Q1623595002 | ND |
| 2017-03-03 | Q1709134013 | ND |
| 2017-03-03 | Q1709134010 | ND |
| 2017-03-03 | Q1709134007 | ND |
| 2018-05-30 | Q1821787014 | ND |
| 2018-05-30 | Q1821787012 | ND |
| 2018-12-11 | Q1850899001 | ND |
| 2019-10-10 | Q1972211004 | ND |
| 2019-10-10 | Q1972211002 | ND |
| 2019-12-18 | Q1980817001 | ND |