cis-1,2-Dichloroethylene
City of Moses Lake
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.
32
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 7 | 0 | ND |
| 2017 | ND | 12 | 0 | ND |
| 2018 | 0.320 ppb | 5 | 3 | ND - 0.560 ppb |
| 2019 | 0.201 ppb | 7 | 2 | ND - 0.710 ppb |
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 |
|---|---|---|
| 2015-03-10 | 74810 | ND |
| 2016-03-08 | ND | |
| 2016-06-20 | ND | |
| 2016-06-20 | ND | |
| 2016-06-20 | ND | |
| 2016-06-20 | ND | |
| 2016-09-20 | ND | |
| 2016-09-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-20 | ND | |
| 2017-06-26 | ND | |
| 2017-06-26 | ND | |
| 2017-06-26 | ND | |
| 2017-06-26 | ND | |
| 2017-11-27 | ND | |
| 2018-01-31 | 0.500 ppb | |
| 2018-04-03 | ND | |
| 2018-06-28 | ND | |
| 2018-09-11 | 0.540 ppb | |
| 2018-11-06 | 0.560 ppb | |
| 2019-03-26 | ND | |
| 2019-07-09 | ND | |
| 2019-07-29 | 0.710 ppb | |
| 2019-10-01 | 0.700 ppb | |
| 2019-11-12 | ND | |
| 2019-11-12 | ND | |
| 2019-12-03 | ND |