1,1-Dichloroethylene
Mountain Hill Water Company
NOTE: Mountain Hill Water Company purchases water from Town of North East which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Town of North East.
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 1 | 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
NOTE: Mountain Hill Water Company purchases water from Town of North East which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Town of North East.
| Date | Lab ID | Result |
|---|---|---|
| 2018-04-24 | E18003801001 | ND |
| 2018-04-24 | E18003801004 | ND |
| 2019-06-11 | E19004244001 | ND |
| 2019-06-11 | E19004245001 | ND |
| 2020-03-18 | E20003190001 | ND |
| 2020-03-18 | E20003190004 | ND |
| 2021-06-23 | E21003830001 | ND |
| 2021-06-23 | E21003830004 | ND |
| 2023-05-18 | E2300286502 | ND |
| 2023-05-18 | E2300286602 | ND |