1,1-Dichloroethylene
Town of Rising Sun
NOTE: Town of Rising Sun purchases water from Chester Water Authority which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Chester Water Authority.
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 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: Town of Rising Sun purchases water from Chester Water Authority which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by Chester Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | 2287664001 | ND |
| 2018-05-15 | 8012319-01 | ND |
| 2018-07-12 | 8020049-01 | ND |
| 2019-07-10 | 3044796001 | ND |
| 2020-02-03 | 21499838.00 | ND |
| 2020-05-01 | 22019659.00 | ND |
| 2020-07-01 | 22412577.00 | ND |
| 2021-04-09 | 24244248.00 | ND |
| 2021-07-28 | 24825577.00 | ND |
| 2022-04-29 | 26461084.00 | ND |
| 2022-08-09 | 27230362.00 | ND |
| 2022-11-08 | 27819909.00 | ND |
| 2023-07-12 | 29299118.00 | ND |
| 2023-11-08 | 30068043.00 | ND |
| 2023-11-15 | 30068562.00 | ND |