1,1-Dichloroethylene
Silverdale Water District 16
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
13
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 11 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2015-08-20 | 39383 | ND |
| 2015-08-20 | 39382 | ND |
| 2015-08-20 | 39381 | ND |
| 2015-08-20 | 39380 | ND |
| 2015-08-20 | 39379 | ND |
| 2015-08-20 | 39378 | ND |
| 2015-08-21 | 40225 | ND |
| 2015-08-21 | 40224 | ND |
| 2015-08-21 | 40223 | ND |
| 2015-08-21 | 40222 | ND |
| 2015-08-21 | 40221 | ND |
| 2016-01-25 | ND | |
| 2018-09-04 | ND |