cis-1,2-Dichloroethylene
Spring Grove
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.
26
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.0883 ppb | 6 | 2 | ND - 0.290 ppb |
| 2015 | 0.147 ppb | 3 | 2 | ND - 0.230 ppb |
| 2016 | ND | 4 | 0 | ND |
| 2017 | 0.103 ppb | 7 | 3 | ND - 0.260 ppb |
| 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 |
|---|---|---|
| 2014-03-31 | 14D0075-01 | 0.240 ppb |
| 2014-03-31 | 14D0075-02 | ND |
| 2014-03-31 | 14D0075-03 | ND |
| 2014-03-31 | 14D0074-01 | ND |
| 2014-07-02 | 14G0191-02 | ND |
| 2014-07-02 | 14G0201-01 | 0.290 ppb |
| 2015-08-05 | 15H0339-01 | 0.210 ppb |
| 2015-08-05 | 15H0343-01 | ND |
| 2015-12-07 | 15L0484-01 | 0.230 ppb |
| 2016-03-01 | 16C0140-01 | ND |
| 2016-05-02 | 16E0150-01 | ND |
| 2016-09-27 | 16I1639-01 | ND |
| 2016-12-13 | 16L0566-01 | ND |
| 2017-03-14 | 17C0677-01 | ND |
| 2017-06-21 | 17F1373-01 | 0.210 ppb |
| 2017-06-21 | 17F1373-02 | ND |
| 2017-08-14 | 17H1157-01 | 0.260 ppb |
| 2017-08-14 | 17H1157-02 | ND |
| 2017-12-07 | 17L0354-01 | ND |
| 2017-12-07 | 17L0354-02 | 0.250 ppb |
| 2018-03-27 | 18C1000-02 | ND |
| 2018-10-08 | 18J0356-02 | ND |
| 2019-03-28 | 19C1258-01 | ND |
| 2019-06-27 | 19F1860-01 | ND |
| 2019-09-10 | 19I0546-01 | ND |
| 2019-12-17 | 19L1037-01 | ND |