cis-1,2-Dichloroethylene
Ladwp - Big Pine
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 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 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 |
|---|---|---|
| 2014-08-26 | 1200-001-0815 | ND |
| 2014-08-26 | 1200-002-0745 | ND |
| 2016-03-14 | 1200-003-1420 | ND |
| 2017-06-19 | 1200-003-1555 | ND |
| 2017-08-15 | 1200-003-0810 | ND |
| 2017-10-03 | 1200-003-1515 | ND |
| 2018-03-06 | 1200-003-0850 | ND |
| 2018-12-03 | 1200-003-1540 | ND |
| 2019-03-26 | 1200-003-0730 | ND |
| 2019-05-06 | 1200-003-1400 | ND |
| 2019-07-10 | 1200-003-1000 | ND |
| 2019-09-03 | 1200-003-0850 | ND |