1,1-Dichloroethylene
City of Hermiston
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 | 1 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 5 | 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 |
---|---|---|
2014-08-13 | 140814039001-V | ND |
2015-08-10 | 150813003003-V | ND |
2015-08-10 | 150813003005-V | ND |
2015-08-10 | 150813003007-V | ND |
2015-08-10 | 150813003001-V | ND |
2016-08-03 | 1608040322001-V | ND |
2016-08-03 | 160804032001-V | ND |
2017-04-10 | 170410D2-V | ND |
2017-04-10 | 170410D3-V | ND |
2017-04-10 | 170410D4-V | ND |
2017-04-10 | 170410D1-V | ND |
2017-05-18 | 170518D1-V | ND |
2018-04-03 | 180403J-V | ND |
2019-04-11 | 904120301-V | ND |