cis-1,2-Dichloroethylene
Collingswood Water Depar
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.
50
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 | 0.580 ppb | 8 | 4 | ND - 1.30 ppb |
| 2015 | 0.230 ppb | 8 | 2 | ND - 1.34 ppb |
| 2016 | 0.535 ppb | 8 | 2 | ND - 3.65 ppb |
| 2017 | 0.167 ppb | 9 | 1 | ND - 1.50 ppb |
| 2018 | 0.633 ppb | 10 | 4 | ND - 1.63 ppb |
| 2019 | 0.771 ppb | 7 | 3 | ND - 1.90 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 |
|---|---|---|
| 2014-03-07 | 14031563-002 | 1.30 ppb |
| 2014-03-07 | 14031563-001 | ND |
| 2014-06-17 | 14061881-001 | 1.000 ppb |
| 2014-06-17 | 14061881-002 | ND |
| 2014-09-24 | 14092459-002 | 1.10 ppb |
| 2014-09-24 | 14092459-001 | ND |
| 2014-12-03 | 141203/2641-02 | 1.24 ppb |
| 2014-12-03 | 141203/2641-01 | ND |
| 2015-03-12 | 150312/2808-02 | 1.34 ppb |
| 2015-03-12 | 150312/2808-01 | ND |
| 2015-05-14 | 150514/2931-2 | ND |
| 2015-05-14 | 150514/2931-1 | ND |
| 2015-08-17 | 150817/3123-7 | 0.500 ppb |
| 2015-08-17 | 150817/3123-6 | ND |
| 2015-11-18 | 151118/3295-6D | ND |
| 2015-11-18 | 151118/3295-7D | ND |
| 2016-02-19 | 160219/3440-5 | ND |
| 2016-02-19 | 160219/3440-6 | 3.65 ppb |
| 2016-05-18 | 160518/3620-5 | ND |
| 2016-05-18 | 160518/3620-6 | ND |
| 2016-08-18 | 160818/3800-6 | 0.633 ppb |
| 2016-08-18 | 160818/3800-5 | ND |
| 2016-12-02 | 161202/3978-2A | ND |
| 2016-12-02 | 161202/3978-1A | ND |
| 2017-02-21 | 170221/4468-6 | ND |
| 2017-02-21 | 170221/4468-5 | ND |
| 2017-06-26 | 36672501 | ND |
| 2017-06-26 | 36672502 | ND |
| 2017-06-30 | L6876932-1 | ND |
| 2017-09-15 | 37547701 | ND |
| 2017-09-15 | 37547702 | 1.50 ppb |
| 2017-11-27 | 38205405 | ND |
| 2017-11-27 | 38205406 | ND |
| 2018-03-20 | 39402101 | ND |
| 2018-03-20 | 39402102 | ND |
| 2018-05-25 | 40150402 | 1.60 ppb |
| 2018-05-25 | 40150401 | ND |
| 2018-07-10 | 40707602 | 1.50 ppb |
| 2018-07-10 | 40707601 | ND |
| 2018-12-28 | P18-9014-02 | 1.63 ppb |
| 2018-12-28 | 381228703A | 1.60 ppb |
| 2018-12-28 | P18-9014-01 | ND |
| 2018-12-28 | 381228702A | ND |
| 2019-01-16 | 390116768.1 | 1.90 ppb |
| 2019-01-16 | 390116767.1 | ND |
| 2019-04-03 | 390403745 | 1.70 ppb |
| 2019-04-03 | 390403746 | ND |
| 2019-07-10 | 390711700 | ND |
| 2019-10-16 | 391016760.1 | ND |
| 2019-11-20 | 391120796 | 1.80 ppb |