1,1-Dichloroethylene
Hampton Shaler Water Authority
NOTE: Hampton Shaler Water Authority purchases water from West View Water Authority which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by West View 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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 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: Hampton Shaler Water Authority purchases water from West View Water Authority which is required to test for 1,1-dichloroethylene. Sample information shown below was taken by West View Water Authority.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-02 | 01180119 | ND |
| 2019-01-14 | 9011049-01 | ND |
| 2020-01-06 | 21585870.00 | ND |
| 2020-02-18 | 21755487.00 | ND |
| 2020-05-12 | 22313368.00 | ND |
| 2020-08-04 | 22898214.00 | ND |
| 2020-11-16 | 23448556.00 | ND |
| 2021-02-02 | 23973086.00 | ND |
| 2021-02-02 | 23973107.00 | ND |
| 2022-01-25 | 26032258.00 | ND |
| 2022-01-26 | 26032237.00 | ND |
| 2023-01-24 | 28261372.00 | ND |
| 2023-01-24 | 28261373.00 | ND |