cis-1,2-Dichloroethylene
New Holland Borough
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.
20
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 | 0.760 ppb | 10 | 3 | ND - 2.90 ppb |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 3 | 0 | ND |
| 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 |
|---|---|---|
| 2014-02-25 | 1073202001 | 2.70 ppb |
| 2014-02-25 | 1073202002 | ND |
| 2014-06-17 | 2012894001 | 2.00 ppb |
| 2014-06-17 | 2012894002 | ND |
| 2014-08-19 | 2024391003 | ND |
| 2014-08-19 | 2024391004 | ND |
| 2014-08-19 | 2024391005 | ND |
| 2014-08-26 | 2025562001 | ND |
| 2014-11-18 | 2040667004 | ND |
| 2014-11-18 | 2040667005 | 2.90 ppb |
| 2015-11-17 | 13604756 | ND |
| 2017-11-20 | 17130315 | ND |
| 2017-11-20 | 17130339 | ND |
| 2017-11-20 | 17130363 | ND |
| 2018-09-17 | 2338728003 | ND |
| 2018-12-19 | 3006664002 | ND |
| 2019-03-05 | 9024557-01 | ND |
| 2019-06-04 | 9050534-01 | ND |
| 2019-08-20 | 9081282-01 | ND |
| 2019-12-03 | 9111276-01 | ND |