1,1-Dichloroethylene
Boone County PWSD 9
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 5 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2015-02-18 | AC42741 | ND |
| 2015-02-18 | AC42745 | ND |
| 2015-02-18 | AC42743 | ND |
| 2015-02-18 | AC42742 | ND |
| 2015-02-18 | AC42744 | ND |
| 2018-06-04 | AD19133 | ND |
| 2018-06-04 | AD19134 | ND |
| 2018-06-04 | AD19135 | ND |
| 2018-06-04 | AD19136 | ND |
| 2018-06-04 | AD19137 | ND |