1,1-Dichloroethylene
Sfpuc-pleasanton Wells
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
11
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 |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 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 |
|---|---|---|
| 2014-06-17 | 9553-004-1141 | ND |
| 2014-06-24 | 9553-005-0930 | ND |
| 2016-06-14 | 9553-004-1050 | ND |
| 2016-06-14 | 9553-005-1120 | ND |
| 2016-06-14 | 9553-007-0925 | ND |
| 2017-06-19 | 9553-004-0955 | ND |
| 2017-06-19 | 9553-005-1015 | ND |
| 2018-06-18 | 9553-004-1217 | ND |
| 2018-06-18 | 9553-005-1151 | ND |
| 2019-06-17 | 9553-005-0900 | ND |
| 2019-06-26 | 9553-004-1235 | ND |