cis-1,2-Dichloroethylene
Littlestown 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.
22
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 | ND | 7 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 7 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-04-15 | 140015578 | ND |
| 2014-04-15 | 140015581 | ND |
| 2014-04-15 | 140015584 | ND |
| 2014-04-29 | 140017673 | ND |
| 2014-04-29 | 140017670 | ND |
| 2014-05-21 | 140021214 | ND |
| 2014-06-10 | 140024540 | ND |
| 2015-10-21 | 13472840 | ND |
| 2016-06-15 | 14518253 | ND |
| 2017-05-10 | 16205361 | ND |
| 2017-07-26 | 16517363 | ND |
| 2017-07-26 | 16517405 | ND |
| 2017-07-26 | 16517384 | ND |
| 2017-08-02 | 16517653 | ND |
| 2017-08-23 | 16677257 | ND |
| 2017-08-23 | 16677207 | ND |
| 2018-07-18 | 8020680-01 | ND |
| 2019-12-04 | 9042445-01 | ND |
| 2019-12-09 | 9042952-01 | ND |
| 2019-12-11 | 9043294-03 | ND |
| 2019-12-16 | 9043795-02 | ND |
| 2019-12-18 | 9044166-01 | ND |