cis-1,2-Dichloroethylene
Upper Hanover Water 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.
50
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 |
|---|---|---|---|---|
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 10 | 0 | ND |
| 2022 | ND | 13 | 0 | ND |
| 2023 | ND | 7 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-01-30 | 8001978-01 | ND |
| 2018-04-25 | 8008140-01 | ND |
| 2018-07-17 | 8017906-01 | ND |
| 2018-07-25 | 8019752-01 | ND |
| 2018-07-25 | 8019752-02 | ND |
| 2018-10-10 | 8028641-01 | ND |
| 2019-01-23 | 8038660-01 | ND |
| 2019-05-07 | 9009685-01 | ND |
| 2019-08-21 | 8038658-01 | ND |
| 2019-09-24 | 9034252-01 | ND |
| 2019-12-11 | 9033962-01 | ND |
| 2020-03-18 | 21847890.00 | ND |
| 2020-03-20 | 21847916.00 | ND |
| 2020-03-20 | 21847915.00 | ND |
| 2020-04-28 | 22024157.00 | ND |
| 2020-04-28 | 22024156.00 | ND |
| 2020-06-24 | 22417291.00 | ND |
| 2020-07-01 | 22417292.00 | ND |
| 2020-10-06 | 23183405.00 | ND |
| 2020-11-20 | 23362962.00 | ND |
| 2021-03-16 | 24061084.00 | ND |
| 2021-03-19 | 24061085.00 | ND |
| 2021-04-21 | 24248439.00 | ND |
| 2021-04-30 | 24248591.00 | ND |
| 2021-07-06 | 24829850.00 | ND |
| 2021-07-09 | 24830003.00 | ND |
| 2021-10-05 | 25405584.00 | ND |
| 2021-10-29 | 25405741.00 | ND |
| 2021-12-29 | 25765019.00 | ND |
| 2021-12-29 | 25764998.00 | ND |
| 2022-02-01 | 25943598.00 | ND |
| 2022-02-01 | 25943597.00 | ND |
| 2022-02-01 | 25943599.00 | ND |
| 2022-02-23 | 26118533.00 | ND |
| 2022-02-23 | 26118534.00 | ND |
| 2022-05-05 | 26649352.00 | ND |
| 2022-05-06 | 26649353.00 | ND |
| 2022-06-02 | 26649530.00 | ND |
| 2022-06-03 | 26649531.00 | ND |
| 2022-07-07 | 27037971.00 | ND |
| 2022-07-08 | 27037972.00 | ND |
| 2022-12-01 | 27999400.00 | ND |
| 2022-12-02 | 27999401.00 | ND |
| 2023-01-04 | 28173523.00 | ND |
| 2023-04-10 | 28703145.00 | ND |
| 2023-04-11 | 28703144.00 | ND |
| 2023-04-11 | 28703143.00 | ND |
| 2023-07-03 | 29302584.00 | ND |
| 2023-10-03 | 29700858.00 | ND |
| 2023-11-28 | 30246495.00 | ND |