cis-1,2-Dichloroethylene
Ephrata Area Joint 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.
48
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 | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 10 | 0 | ND |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2018-01-04 | 7020609-01 | ND |
| 2018-01-05 | 8000628-01 | ND |
| 2018-04-09 | 8007939-01 | ND |
| 2018-07-15 | 8020415-01 | ND |
| 2018-10-01 | 8028440-01 | ND |
| 2019-01-02 | 8018023-01 | ND |
| 2019-01-08 | 9000133-01 | ND |
| 2019-04-02 | 7004831-01 | ND |
| 2019-07-02 | 7011943-01 | ND |
| 2019-10-07 | 9035881-01 | ND |
| 2020-01-03 | 21627529.00 | ND |
| 2020-04-06 | 22168748.00 | ND |
| 2020-04-13 | 22168801.00 | ND |
| 2020-04-13 | 22168800.00 | ND |
| 2020-07-13 | 22753752.00 | ND |
| 2020-07-17 | 22753829.00 | ND |
| 2020-07-21 | 22753830.00 | ND |
| 2020-10-07 | 23319884.00 | ND |
| 2020-10-14 | 23319961.00 | ND |
| 2021-02-12 | 24015878.00 | ND |
| 2021-02-26 | 24015903.00 | ND |
| 2021-04-08 | 24201057.00 | ND |
| 2021-04-14 | 24390924.00 | ND |
| 2021-07-01 | 24976236.00 | ND |
| 2021-07-01 | 24976237.00 | ND |
| 2021-07-16 | 24976348.00 | ND |
| 2021-10-05 | 25545657.00 | ND |
| 2021-10-08 | 25545728.00 | ND |
| 2022-01-05 | 26077512.00 | ND |
| 2022-01-31 | 26077712.00 | ND |
| 2022-02-08 | 26247113.00 | ND |
| 2022-04-04 | 26604668.00 | ND |
| 2022-04-05 | 26604700.00 | ND |
| 2022-07-11 | 27188738.00 | ND |
| 2022-07-12 | 27188822.00 | ND |
| 2022-07-22 | 27188981.00 | ND |
| 2022-10-10 | 27782893.00 | ND |
| 2022-10-25 | 27782942.00 | ND |
| 2023-01-09 | 28307553.00 | ND |
| 2023-01-24 | 28307785.00 | ND |
| 2023-01-24 | 28307807.00 | ND |
| 2023-04-14 | 28855570.00 | ND |
| 2023-04-14 | 28855569.00 | ND |
| 2023-07-11 | 29451544.00 | ND |
| 2023-07-18 | 29451603.00 | ND |
| 2023-08-29 | 29654928.00 | ND |
| 2023-10-31 | 30028761.00 | ND |
| 2023-10-31 | 30028760.00 | ND |