1,1-Dichloroethylene
City of San Jacinto
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 4 | 0 | ND |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 4 | 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 |
---|---|---|
2016-01-20 | 4790-014-0847 | ND |
2016-01-27 | 4790-005-0840 | ND |
2016-02-23 | 4790-001-1430 | ND |
2016-03-02 | 4790-010-1420 | ND |
2019-03-20 | 4790-010-0701 | ND |
2019-03-27 | 4790-014-0701 | ND |
2019-12-10 | 4790-010-1330 | ND |
2019-12-11 | 4790-005-0900 | ND |