cis-1,2-Dichloroethylene
Faribault
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.440 ppb | 2 | 2 | 0.250 ppb - 0.630 ppb |
2015 | 0.660 ppb | 1 | 1 | 0.660 ppb |
2016 | 1.20 ppb | 1 | 1 | 1.20 ppb |
2017 | 0.987 ppb | 6 | 6 | 0.240 ppb - 2.20 ppb |
2018 | 0.380 ppb | 1 | 1 | 0.380 ppb |
2019 | 1.30 ppb | 1 | 1 | 1.30 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 |
---|---|---|
2014-02-04 | 14B0136-01 | 0.250 ppb |
2014-04-22 | 14D1306-01 | 0.630 ppb |
2015-04-06 | 15D0292-01 | 0.660 ppb |
2016-03-14 | 3414132 | 1.20 ppb |
2017-02-22 | 17B1185-01 | 0.240 ppb |
2017-02-22 | 17B1189-01 | 2.20 ppb |
2017-02-22 | 17B1189-02 | 0.430 ppb |
2017-02-22 | 17B1189-03 | 0.450 ppb |
2017-02-22 | 17B1191-01 | 1.10 ppb |
2017-10-05 | 17J0335-01 | 1.50 ppb |
2018-04-09 | 18D0324-01 | 0.380 ppb |
2019-06-11 | 19F0776-01 | 1.30 ppb |