1,1-Dichloroethylene
Lewistown Boro Municipal Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
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 | 2 | 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 |
|---|---|---|
| 2018-08-23 | 8H23184-03 | ND |
| 2019-07-11 | 9G11288-01 | ND |
| 2020-07-14 | 22692316.00 | ND |
| 2020-09-04 | 23079724.00 | ND |
| 2021-08-12 | 25109901.00 | ND |
| 2022-08-11 | 27327367.00 | ND |
| 2022-08-11 | 27327368.00 | ND |
| 2022-08-18 | 27327559.00 | ND |
| 2023-06-13 | 29198033.00 | ND |
| 2023-06-15 | 29198067.00 | ND |