1,1-Dichloroethylene
Newtok Water System
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
8
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 | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2014-11-05 | VO*A1411133-02A | ND |
| 2015-03-26 | VO*1151168002 | ND |
| 2015-05-26 | VO*1152396001 | ND |
| 2015-10-08 | VO*3344806 | ND |
| 2015-12-01 | VO*1156980001 | ND |
| 2016-03-21 | VO*280-81163-1 | ND |
| 2016-11-15 | VO*440-166351-1 | ND |
| 2019-02-23 | X440-235062-1 | ND |