cis-1,2-Dichloroethylene
Perkasie Regional Authority
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.
57
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 1.64 ppb | 11 | 5 | ND - 6.70 ppb |
| 2015 | 2.15 ppb | 11 | 6 | ND - 12.5 ppb |
| 2016 | 1.07 ppb | 11 | 4 | ND - 3.50 ppb |
| 2017 | 0.600 ppb | 10 | 4 | ND - 1.80 ppb |
| 2018 | ND | 7 | 0 | ND |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-03-11 | L2515685-1 | 4.10 ppb |
| 2014-03-11 | L2515685-2 | ND |
| 2014-06-10 | L5101092-11 | 6.70 ppb |
| 2014-06-10 | L5101092-12 | 0.500 ppb |
| 2014-09-09 | L5170431-1 | 4.30 ppb |
| 2014-09-09 | L5170431-3 | ND |
| 2014-09-09 | L5170431-5 | ND |
| 2014-09-09 | L5170431-2 | ND |
| 2014-09-09 | L5170431-4 | ND |
| 2014-12-09 | L5292845-1 | 2.40 ppb |
| 2014-12-09 | L5292845-2 | ND |
| 2015-03-10 | 12501664 | 12.5 ppb |
| 2015-03-10 | 12501718 | ND |
| 2015-06-09 | 12867653 | 5.50 ppb |
| 2015-06-09 | 12867707 | 0.700 ppb |
| 2015-09-08 | 13250085 | 3.40 ppb |
| 2015-09-08 | 13250193 | ND |
| 2015-09-08 | 13250139 | 0.600 ppb |
| 2015-09-08 | 13250247 | ND |
| 2015-09-08 | 13250301 | ND |
| 2015-12-08 | 13619622 | 0.900 ppb |
| 2015-12-08 | 13619676 | ND |
| 2016-03-08 | 13972773 | ND |
| 2016-03-08 | 13972721 | 3.50 ppb |
| 2016-06-07 | 14389090 | ND |
| 2016-06-07 | 14389038 | 3.10 ppb |
| 2016-09-13 | 14889436 | 3.40 ppb |
| 2016-09-13 | 14889592 | ND |
| 2016-09-13 | 14889540 | ND |
| 2016-09-13 | 14889644 | ND |
| 2016-09-13 | 14889488 | ND |
| 2016-12-06 | 15355998 | 1.80 ppb |
| 2016-12-06 | 15356050 | ND |
| 2017-03-07 | 15780104 | 1.80 ppb |
| 2017-03-07 | 15780156 | ND |
| 2017-06-06 | 16240729 | 1.80 ppb |
| 2017-06-06 | 16240781 | ND |
| 2017-09-05 | 16711046 | ND |
| 2017-09-05 | 16710942 | ND |
| 2017-09-05 | 16710994 | ND |
| 2017-09-05 | 16710890 | 1.30 ppb |
| 2017-12-05 | 17146785 | 1.10 ppb |
| 2017-12-05 | 17146837 | ND |
| 2018-03-06 | 8024485-02 | ND |
| 2018-06-04 | 8052857-02 | ND |
| 2018-09-04 | 8084662-02 | ND |
| 2018-09-17 | 8093548-03 | ND |
| 2018-09-17 | 8093548-02 | ND |
| 2018-09-17 | 8093548-01 | ND |
| 2018-12-03 | 8110453-02RE | ND |
| 2019-03-05 | 9023322-02 | ND |
| 2019-06-04 | 9053891-02 | ND |
| 2019-09-03 | 9084135-02 | ND |
| 2019-11-11 | 9111441-02 | ND |
| 2019-11-11 | 9111441-03 | ND |
| 2019-11-11 | 9111441-01 | ND |
| 2019-12-03 | 9113323-02 | ND |