1,1-Dichloroethylene
Deadwood Water Supply Corporation
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 2 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 0 | ND |
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 |
---|---|---|
2015-09-03 | Q1534207003 | ND |
2015-09-03 | Q1534207002 | ND |
2016-03-24 | Q1612208002 | ND |
2016-06-09 | Q1623229007 | ND |
2016-06-09 | Q1623229005 | ND |
2017-08-29 | Q1739266002 | ND |
2017-08-29 | Q1739266005 | ND |
2018-11-28 | Q1848538001 | ND |
2018-11-28 | Q1848538004 | ND |
2019-05-14 | Q1924644003 | ND |
2019-05-14 | Q1924644005 | ND |