cis-1,2-Dichloroethylene
Beacham Apartments No. 2
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.
7
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 | 3.40 ppb | 1 | 1 | 3.40 ppb |
| 2019 | 4.80 ppb | 1 | 1 | 4.80 ppb |
| 2020 | 3.77 ppb | 2 | 2 | 3.70 ppb - 3.85 ppb |
| 2021 | 3.08 ppb | 1 | 1 | 3.08 ppb |
| 2022 | 3.18 ppb | 1 | 1 | 3.18 ppb |
| 2023 | 2.63 ppb | 1 | 1 | 2.63 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 |
|---|---|---|
| 2018-06-18 | 1126-18 | 3.40 ppb |
| 2019-06-19 | 4059-19 | 4.80 ppb |
| 2020-06-03 | 1467-20 | 3.70 ppb |
| 2020-11-19 | 37729_20-50540 | 3.85 ppb |
| 2021-04-07 | 37729_21-14028 | 3.08 ppb |
| 2022-04-12 | 37729_22-16148 | 3.18 ppb |
| 2023-04-26 | 37729_23-20689 | 2.63 ppb |