1,1-Dichloroethylene
Mount Hope Waterworks
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 | ND | 4 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-03-31 | 125512001 | ND |
2014-06-24 | 141128001 | ND |
2014-09-09 | 816611 | ND |
2014-11-03 | 829289 | ND |
2015-09-29 | 886784 | ND |
2016-07-13 | 933183 | ND |
2017-07-24 | 1006185 | ND |
2018-07-02 | 1065024 | ND |
2019-07-22 | 1135972 | ND |