cis-1,2-Dichloroethylene
Whitehall Twp 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.
38
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 | 0.892 ppb | 13 | 4 | ND - 3.20 ppb |
| 2015 | 2.07 ppb | 6 | 4 | ND - 3.20 ppb |
| 2016 | 1.90 ppb | 6 | 4 | ND - 3.20 ppb |
| 2017 | 1.26 ppb | 9 | 4 | ND - 3.70 ppb |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-02-11 | 14011560-06 | 2.80 ppb |
| 2014-02-11 | 14011560-01 | ND |
| 2014-02-11 | 14011560-02 | ND |
| 2014-02-11 | 14011560-03 | ND |
| 2014-02-11 | 14011560-04 | ND |
| 2014-02-11 | 14011560-05 | ND |
| 2014-02-11 | 14011560-07 | ND |
| 2014-05-06 | 14041101-01 | 2.70 ppb |
| 2014-05-06 | 14041101-02 | ND |
| 2014-08-12 | 14073702-01 | 2.90 ppb |
| 2014-08-12 | 14073702-02 | ND |
| 2014-11-04 | 14100715-02 | ND |
| 2014-11-04 | 14100715-01 | 3.20 ppb |
| 2015-02-05 | 12436940 | ND |
| 2015-02-05 | 12436961 | ND |
| 2015-02-05 | 12436898 | 3.10 ppb |
| 2015-05-05 | 12790898 | 3.20 ppb |
| 2015-08-18 | 13173175 | 3.00 ppb |
| 2015-11-04 | 13427352 | 3.10 ppb |
| 2016-02-04 | 13905666 | ND |
| 2016-02-04 | 13905645 | ND |
| 2016-02-04 | 13905603 | 2.90 ppb |
| 2016-05-03 | 14149474 | 2.30 ppb |
| 2016-08-02 | 14787682 | 3.20 ppb |
| 2016-11-08 | 15269531 | 3.00 ppb |
| 2017-02-07 | 15697012 | 3.70 ppb |
| 2017-02-07 | 15697054 | ND |
| 2017-02-07 | 15697075 | ND |
| 2017-02-07 | 15697096 | ND |
| 2017-02-07 | 15697117 | ND |
| 2017-02-07 | 15697138 | ND |
| 2017-05-02 | 16144956 | 3.00 ppb |
| 2017-09-05 | 16774038 | 2.24 ppb |
| 2017-11-07 | 17064731 | 2.44 ppb |
| 2018-02-13 | 8013120-01 | ND |
| 2018-02-13 | 8013121-01 | ND |
| 2019-02-05 | 9012092-01 | ND |
| 2019-02-05 | 9012093-01 | ND |