1,1-Dichloroethylene
Tri-County Water Distbr District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
9
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 | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 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 |
|---|---|---|
| 2014-01-07 | 14009002801 | ND |
| 2014-02-25 | 14058002009 | ND |
| 2014-04-16 | 14107008309 | ND |
| 2014-07-16 | 14198015109 | ND |
| 2014-11-11 | 14316004401 | ND |
| 2015-10-20 | 15295004101 | ND |
| 2016-11-01 | 16308007009 | ND |
| 2017-11-07 | 17313009901 | ND |
| 2018-10-22 | 18298001801 | ND |