cis-1,2-Dichloroethylene
Lancaster Water Company
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.
12
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-07-18 | CA1900808_002_002-201807181150 | ND |
| 2018-07-18 | CA1900808_001_001-201807181135 | ND |
| 2019-07-17 | CA1900808_001_001-201907171120 | ND |
| 2019-07-17 | CA1900808_002_002-201907171123 | ND |
| 2020-07-15 | CA1900808_001_001-202007151105 | ND |
| 2020-07-15 | CA1900808_002_002-202007151110 | ND |
| 2021-07-21 | CA1900808_002_002-202107211220 | ND |
| 2021-07-21 | CA1900808_001_001-202107211210 | ND |
| 2022-07-20 | CA1900808_002_002-202207201145 | ND |
| 2022-07-20 | CA1900808_001_001-202207201150 | ND |
| 2023-07-19 | CA1900808_001_001-202307191235 | ND |
| 2023-07-19 | CA1900808_002_002-202307191238 | ND |