cis-1,2-Dichloroethylene
Burr Oak
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.
49
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 | 0.967 ppb | 6 | 5 | ND - 1.80 ppb |
| 2019 | 1.000 ppb | 5 | 5 | 0.700 ppb - 1.20 ppb |
| 2020 | 1.15 ppb | 4 | 4 | 0.600 ppb - 1.70 ppb |
| 2021 | 1.13 ppb | 9 | 9 | 0.600 ppb - 1.70 ppb |
| 2022 | 1.39 ppb | 12 | 12 | 0.700 ppb - 2.30 ppb |
| 2023 | 1.38 ppb | 13 | 13 | 0.500 ppb - 2.40 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 |
|---|---|---|
| 2018-03-08 | LLH69426 | 1.30 ppb |
| 2018-05-30 | LLH82924 | 1.80 ppb |
| 2018-08-27 | LLI01494 | ND |
| 2018-11-19 | LLI15978 | 1.60 ppb |
| 2018-11-19 | LLI15976 | 0.600 ppb |
| 2018-11-19 | LLI15977 | 0.500 ppb |
| 2019-03-07 | LLI28317 | 1.10 ppb |
| 2019-06-27 | LLI46828 | 0.800 ppb |
| 2019-07-24 | LLI52063 | 1.20 ppb |
| 2019-10-10 | LLI70511 | 1.20 ppb |
| 2019-12-27 | LLI86075 | 0.700 ppb |
| 2020-01-13 | 1.60 ppb | |
| 2020-04-09 | 1.70 ppb | |
| 2020-07-20 | 0.700 ppb | |
| 2020-10-13 | 0.600 ppb | |
| 2021-01-27 | 0.800 ppb | |
| 2021-06-24 | 1.50 ppb | |
| 2021-06-24 | 0.800 ppb | |
| 2021-06-24 | 0.700 ppb | |
| 2021-09-28 | 1.30 ppb | |
| 2021-09-28 | 1.30 ppb | |
| 2021-10-13 | 1.70 ppb | |
| 2021-10-13 | 1.50 ppb | |
| 2021-10-13 | 0.600 ppb | |
| 2022-01-19 | 1.50 ppb | |
| 2022-01-19 | 0.800 ppb | |
| 2022-01-19 | 1.50 ppb | |
| 2022-06-08 | 1.20 ppb | |
| 2022-06-08 | 1.10 ppb | |
| 2022-06-08 | 2.10 ppb | |
| 2022-09-01 | 0.700 ppb | |
| 2022-09-01 | 0.700 ppb | |
| 2022-09-01 | 1.70 ppb | |
| 2022-10-19 | 1.000 ppb | |
| 2022-10-19 | 2.30 ppb | |
| 2022-10-19 | 2.10 ppb | |
| 2023-03-16 | 1.50 ppb | |
| 2023-03-16 | 1.20 ppb | |
| 2023-03-16 | 2.30 ppb | |
| 2023-05-10 | 2.30 ppb | |
| 2023-05-10 | 1.20 ppb | |
| 2023-05-10 | 1.60 ppb | |
| 2023-09-14 | 0.500 ppb | |
| 2023-09-14 | 0.700 ppb | |
| 2023-09-25 | 1.90 ppb | |
| 2023-09-25 | 0.500 ppb | |
| 2023-10-19 | 0.700 ppb | |
| 2023-10-19 | 1.20 ppb | |
| 2023-10-19 | 2.40 ppb |