cis-1,2-Dichloroethylene
Spring Park
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.
45
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 | 1.95 ppb | 8 | 4 | ND - 5.30 ppb |
| 2015 | 1.67 ppb | 16 | 8 | ND - 6.40 ppb |
| 2016 | 1.80 ppb | 6 | 3 | ND - 6.10 ppb |
| 2017 | 3.14 ppb | 5 | 5 | 0.300 ppb - 7.10 ppb |
| 2018 | 0.313 ppb | 4 | 2 | ND - 0.630 ppb |
| 2019 | 0.250 ppb | 6 | 4 | ND - 0.590 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 |
|---|---|---|
| 2014-08-06 | 14H0397-02 | 3.60 ppb |
| 2014-08-06 | 14H0397-01 | 5.20 ppb |
| 2014-08-06 | 14H0407-01 | ND |
| 2014-08-06 | 14H0397-03 | ND |
| 2014-11-05 | 14K0190-01 | 5.30 ppb |
| 2014-11-05 | 14K0190-02 | 1.50 ppb |
| 2014-11-05 | 14K0190-03 | ND |
| 2014-11-05 | 14K0191-01 | ND |
| 2015-01-29 | 15A1181-01 | 5.10 ppb |
| 2015-01-29 | 15A1181-02 | 1.30 ppb |
| 2015-01-29 | 15A1181-03 | ND |
| 2015-01-29 | 15A1183-01 | ND |
| 2015-04-22 | 15D1531-01 | 5.40 ppb |
| 2015-04-22 | 15D1533-01 | ND |
| 2015-04-22 | 15D1531-03 | ND |
| 2015-04-22 | 15D1531-02 | 0.990 ppb |
| 2015-09-02 | 15I0187-01 | ND |
| 2015-09-02 | 15I0192-01 | 5.60 ppb |
| 2015-09-02 | 15I0192-02 | 0.760 ppb |
| 2015-09-02 | 15I0192-03 | ND |
| 2015-11-06 | 15K0495-03 | 6.40 ppb |
| 2015-11-06 | 15K0495-02 | 1.10 ppb |
| 2015-11-06 | 15K0492-01 | ND |
| 2015-11-06 | 15K0495-01 | ND |
| 2016-02-02 | 16B0167-01 | 1.50 ppb |
| 2016-02-02 | 16B0168-01 | 6.10 ppb |
| 2016-02-02 | 16B0168-02 | 3.20 ppb |
| 2016-04-12 | 3429304 | ND |
| 2016-08-25 | 16H2587-01 | ND |
| 2016-12-14 | 16L0585-01 | ND |
| 2017-04-24 | 17D1455-01 | 0.300 ppb |
| 2017-08-08 | 17H0592-01 | 2.50 ppb |
| 2017-11-15 | 17K0663-01 | 0.800 ppb |
| 2017-11-15 | 17K0662-02 | 5.00 ppb |
| 2017-11-15 | 17K0662-01 | 7.10 ppb |
| 2018-02-27 | 18B1222-01 | ND |
| 2018-04-26 | 18D1558-01 | ND |
| 2018-11-13 | 18K0569-01 | 0.630 ppb |
| 2018-12-18 | 18L0646-01 | 0.620 ppb |
| 2019-01-29 | 19A0922-01 | 0.280 ppb |
| 2019-02-19 | 19B0810-01 | ND |
| 2019-03-22 | 19C0967-01 | 0.240 ppb |
| 2019-05-10 | 19E0822-01 | ND |
| 2019-10-01 | 19J0043-01 | 0.590 ppb |
| 2019-11-05 | 19K0180-01 | 0.390 ppb |