1,1-Dichloroethylene
Pittsburgh Water & Sewer Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
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 | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-05-02 | 18E0265-01 | ND |
| 2019-05-21 | 19E2494-01 | ND |
| 2019-12-13 | 19L1687-01 | ND |
| 2020-02-05 | 21752612.00 | ND |
| 2020-05-05 | 22310199.00 | ND |
| 2020-10-23 | 23270639.00 | ND |
| 2021-02-02 | 23970441.00 | ND |
| 2021-06-10 | 24731875.00 | ND |
| 2021-06-10 | 24731876.00 | ND |
| 2022-05-03 | 26743766.00 | ND |
| 2022-05-03 | 26743767.00 | ND |
| 2023-05-18 | 29001698.00 | ND |