cis-1,2-Dichloroethylene
Beardstown
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.
16
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 | 1.90 ppb | 1 | 1 | 1.90 ppb |
| 2015 | 1.30 ppb | 1 | 1 | 1.30 ppb |
| 2016 | 0.660 ppb | 1 | 1 | 0.660 ppb |
| 2017 | 1.10 ppb | 1 | 1 | 1.10 ppb |
| 2018 | 1.80 ppb | 7 | 5 | ND - 3.10 ppb |
| 2019 | 1.87 ppb | 5 | 5 | 0.660 ppb - 2.50 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 |
|---|---|---|
| 2014-04-11 | 4041981-01 | 1.90 ppb |
| 2015-04-06 | 5040632-01 | 1.30 ppb |
| 2016-04-04 | 6040222-01 | 0.660 ppb |
| 2017-04-03 | 7040062-01 | 1.10 ppb |
| 2018-01-22 | 8013210-01 | 3.10 ppb |
| 2018-05-03 | 8050766-01 | 1.10 ppb |
| 2018-05-03 | 8050766-02 | 2.80 ppb |
| 2018-07-12 | 8072373-02 | 2.80 ppb |
| 2018-09-14 | 18I0550-01_02 | ND |
| 2018-09-14 | 18I0550-03_02 | ND |
| 2018-10-16 | 8103168-03 | 2.80 ppb |
| 2019-01-21 | 9013340-01 | 2.50 ppb |
| 2019-04-15 | 9043303-01 | 2.10 ppb |
| 2019-05-20 | 9053969-01 | 0.660 ppb |
| 2019-07-11 | 9072337-01 | 2.10 ppb |
| 2019-10-10 | 9102490-01 | 2.00 ppb |