1,1-Dichloroethylene
St Bernard Parish Waterworks
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
9
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-03-06 | 35378295001 | ND |
| 2018-03-06 | 35378295001 | ND |
| 2019-02-14 | 35448755001 | ND |
| 2019-02-14 | 35448755001 | ND |
| 2020-03-10 | 35536678001 | ND |
| 2020-11-18 | 35593411001 | ND |
| 2021-03-09 | 35617728001 | ND |
| 2022-02-09 | 35696480001 | ND |
| 2023-02-08 | 35778323001 | ND |