1,1-Dichloroethylene
City of Hollister
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 | ND | 6 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 5 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-06-12 | 1610-001-1205 | ND |
2014-06-12 | 1610-002-1145 | ND |
2014-06-12 | 1610-005-1015 | ND |
2014-06-12 | 1610-006-1315 | ND |
2014-06-12 | 1610-007-1250 | ND |
2014-06-12 | 1610-009-1055 | ND |
2017-06-01 | 1610-001-1011 | ND |
2017-06-01 | 1610-002-1045 | ND |
2017-06-08 | 1610-005-1150 | ND |
2017-06-08 | 1610-006-1236 | ND |
2017-06-08 | 1610-007-0916 | ND |