cis-1,2-Dichloroethylene
East Cocalico Township
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | 0.231 ppb | 16 | 4 | ND - 1.40 ppb |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | 0.144 ppb | 16 | 3 | ND - 0.900 ppb |
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 |
|---|---|---|
| 2018-04-27 | 8045051-02RE | ND |
| 2018-04-27 | 8045051-08 | ND |
| 2018-04-27 | 8045051-11 | ND |
| 2018-04-27 | 8045051-10 | ND |
| 2019-04-29 | 9041601-06 | ND |
| 2019-04-29 | 9041601-08 | ND |
| 2019-04-29 | 9041601-09 | ND |
| 2019-04-29 | 9041601-02 | ND |
| 2020-05-01 | 22369762.00 | ND |
| 2020-05-01 | 22369741.00 | ND |
| 2020-05-01 | 22369718.00 | ND |
| 2020-05-01 | 22369695.00 | 1.000 ppb |
| 2020-05-01 | 22369672.00 | ND |
| 2020-05-01 | 22369649.00 | ND |
| 2020-05-01 | 22369626.00 | ND |
| 2020-05-01 | 22369603.00 | ND |
| 2020-05-01 | 22369580.00 | ND |
| 2020-05-01 | 22369535.00 | ND |
| 2020-05-01 | 22369557.00 | ND |
| 2020-05-11 | 22369503.00 | 0.700 ppb |
| 2020-09-25 | 23142974.00 | ND |
| 2020-10-22 | 23322763.00 | 1.40 ppb |
| 2020-10-29 | 23322721.00 | 0.600 ppb |
| 2020-11-20 | 23497277.00 | ND |
| 2021-03-10 | 24203656.00 | ND |
| 2021-04-08 | 24393848.00 | ND |
| 2021-04-08 | 24393827.00 | ND |
| 2021-04-08 | 24393798.00 | ND |
| 2021-04-08 | 24393875.00 | ND |
| 2021-07-14 | 24979172.00 | ND |
| 2022-04-08 | 26607717.00 | ND |
| 2022-04-08 | 26607762.00 | ND |
| 2022-04-08 | 26607741.00 | ND |
| 2022-04-08 | 26607690.00 | ND |
| 2023-01-11 | 28310389.00 | 0.700 ppb |
| 2023-01-11 | 28310362.00 | ND |
| 2023-01-11 | 28310434.00 | ND |
| 2023-01-11 | 28310413.00 | ND |
| 2023-04-12 | 28858478.00 | 0.900 ppb |
| 2023-04-12 | 28858477.00 | ND |
| 2023-04-12 | 28858475.00 | ND |
| 2023-04-12 | 28858476.00 | ND |
| 2023-07-12 | 29454829.00 | 0.700 ppb |
| 2023-09-13 | 29847889.00 | ND |
| 2023-09-13 | 29847891.00 | ND |
| 2023-09-13 | 29847894.00 | ND |
| 2023-09-13 | 29847892.00 | ND |
| 2023-09-13 | 29847893.00 | ND |
| 2023-09-13 | 29847890.00 | ND |
| 2023-10-25 | 30031826.00 | ND |