cis-1,2-Dichloroethylene
Mesa Grande 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.
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 | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 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 |
|---|---|---|
| 2014-12-03 | Q1458233004 | ND |
| 2014-12-03 | Q1458233006 | ND |
| 2015-10-22 | Q1541808003 | ND |
| 2015-10-22 | Q1541808001 | ND |
| 2016-11-14 | Q1649175001 | ND |
| 2016-11-14 | Q1649175003 | ND |
| 2017-12-14 | Q1766132002 | ND |
| 2017-12-14 | Q1766132003 | ND |
| 2018-10-01 | Q1838902010 | ND |
| 2018-10-01 | Q1838902008 | ND |
| 2019-09-23 | Q1967401003 | ND |
| 2019-09-23 | Q1967401005 | ND |