1,1-Dichloroethylene
City of Lathrop
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-04-01 | 1610-005-0905 | ND |
| 2015-04-07 | 1610-006-0832 | ND |
| 2015-04-07 | 1610-007-0854 | ND |
| 2016-04-05 | 9590-008-0908 | ND |
| 2016-04-19 | 9590-016-0808 | ND |
| 2017-04-03 | 9590-005-1012 | ND |
| 2018-07-23 | 5867-006-0837 | ND |
| 2018-07-23 | 5867-007-0810 | ND |
| 2019-06-03 | 5867-008-0905 | ND |
| 2019-06-03 | 5867-016-0918 | ND |