cis-1,2-Dichloroethylene
West Burlington Muni. Water Supply
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.
11
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 | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 0.500 ppb | 1 | 1 | 0.500 ppb |
| 2021 | 0.775 ppb | 4 | 4 | 0.700 ppb - 0.900 ppb |
| 2022 | 0.667 ppb | 6 | 6 | 0.500 ppb - 0.900 ppb |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2020-10-21 | OE1358177 | 0.500 ppb |
| 2021-01-13 | OE1545372 | 0.700 ppb |
| 2021-01-13 | OE1545373 | 0.900 ppb |
| 2021-10-20 | OE1900309 | 0.700 ppb |
| 2021-10-20 | OE1900310 | 0.800 ppb |
| 2022-04-20 | OE2085549 | 0.900 ppb |
| 2022-04-20 | OE2085550 | 0.800 ppb |
| 2022-07-13 | OE2134723 | 0.600 ppb |
| 2022-07-13 | OE2134724 | 0.500 ppb |
| 2022-10-19 | OE2193225 | 0.700 ppb |
| 2022-10-19 | OE2193226 | 0.500 ppb |