1,1-Dichloroethylene
Greenville Municipal Water Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
9
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 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 7 ppb
The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-08-09 | (101) | ND |
| 2019-03-06 | (101) | ND |
| 2020-07-15 | 22732601.00 | ND |
| 2021-12-20 | 25882368.00 | ND |
| 2022-03-02 | 26401831.00 | ND |
| 2022-06-15 | 26972132.00 | ND |
| 2022-09-06 | 27575006.00 | ND |
| 2023-02-22 | 28460769.00 | ND |
| 2023-08-16 | 29632306.00 | ND |