1,1-Dichloroethylene
Bullock Pen Water District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
15
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 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 |
|---|---|---|
| 2014-03-17 | 4032041-01 | ND |
| 2014-04-21 | 4042445-01 | ND |
| 2014-07-21 | 4071373-01 | ND |
| 2014-10-20 | 4102341-01 | ND |
| 2015-02-23 | 5022560-01 | ND |
| 2015-04-20 | 5042963-01 | ND |
| 2015-07-20 | 5073210-01 | ND |
| 2015-10-19 | 5102696-01 | ND |
| 2016-01-18 | 6012574-01 | ND |
| 2016-04-18 | 6042551-01 | ND |
| 2016-07-18 | 6072775-01 | ND |
| 2016-12-19 | 6122584-01 | ND |
| 2017-10-16 | 7100166-01 | ND |
| 2018-10-15 | 8100228-01 | ND |
| 2019-10-21 | 9103477-01 | ND |