1,1-Dichloroethylene
Waldo Water System
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
0
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 | 0.0733 ppb | 15 | 1 | ND - 1.10 ppb |
| 2019 | ND | 19 | 0 | ND |
| 2020 | 0.295 ppb | 19 | 9 | ND - 1.10 ppb |
| 2021 | 0.200 ppb | 19 | 7 | ND - 0.800 ppb |
| 2022 | 0.168 ppb | 19 | 2 | ND - 1.70 ppb |
| 2023 | 0.253 ppb | 19 | 3 | ND - 1.80 ppb |
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 |
|---|