1,1-Dichloroethylene
Valley Municipal Utility District 2 Rancho Viejo
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 | 3 | 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 |
---|---|---|
2014-03-05 | AC45703 | ND |
2014-06-04 | AC55971 | ND |
2014-09-24 | AC68087 | ND |
2015-03-18 | AC85059 | ND |
2016-07-28 | AD46210 | ND |
2017-03-01 | AD72795 | ND |
2018-04-25 | AE23964 | ND |
2019-05-09 | AE65715 | ND |