cis-1,2-Dichloroethylene
East Hanover Twp Water Department
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 |
|---|---|---|---|---|
| 2014 | 0.280 ppb | 5 | 2 | ND - 0.800 ppb |
| 2015 | 0.275 ppb | 4 | 1 | ND - 1.10 ppb |
| 2016 | 0.125 ppb | 4 | 1 | ND - 0.500 ppb |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2014-01-23 | 340123046 | ND |
| 2014-01-23 | 340123045 | ND |
| 2014-05-27 | 340527055 | 0.600 ppb |
| 2014-07-21 | 340721053 | 0.800 ppb |
| 2014-10-20 | 341020034 | ND |
| 2015-01-20 | 350120052 | ND |
| 2015-04-20 | 350420022 | ND |
| 2015-07-20 | 350720053 | 1.10 ppb |
| 2015-10-19 | 351019127 | ND |
| 2016-01-19 | 360119106 | ND |
| 2016-04-18 | 360418117 | 0.500 ppb |
| 2016-07-18 | 360718098 | ND |
| 2016-10-17 | 361017072 | ND |
| 2017-01-23 | 370123022 | ND |
| 2017-02-06 | 370206087 | ND |
| 2017-04-17 | 370417073 | ND |
| 2017-07-17 | 370717080 | ND |
| 2017-10-16 | 371016015 | ND |
| 2018-01-16 | 380116188 | ND |
| 2018-04-16 | 380416062 | ND |
| 2018-07-16 | 380716082 | ND |
| 2018-10-15 | 381015012 | ND |
| 2019-01-22 | 390122127 | ND |
| 2019-04-16 | 390417203 | ND |
| 2019-07-16 | 390716016 | ND |
| 2019-10-22 | 391022158 | ND |