1,1-Dichloroethylene
Granton Waterworks
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
25
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 | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2014-03-19 | 775760 | ND |
| 2014-04-29 | 782996 | ND |
| 2014-04-29 | 782993 | ND |
| 2014-08-20 | 812183 | ND |
| 2014-11-19 | 832438 | ND |
| 2015-02-17 | 844135 | ND |
| 2015-02-17 | 844138 | ND |
| 2015-06-09 | 864449 | ND |
| 2015-08-04 | 875052 | ND |
| 2015-11-18 | 894789 | ND |
| 2016-01-20 | 901915 | ND |
| 2016-01-20 | 901913 | ND |
| 2016-06-15 | 927228 | ND |
| 2016-08-23 | 941021 | ND |
| 2016-11-30 | 962298 | ND |
| 2017-02-01 | 971836 | ND |
| 2017-02-01 | 971839 | ND |
| 2017-06-19 | 998523 | ND |
| 2017-09-19 | 1019400 | ND |
| 2017-12-12 | 1033097 | ND |
| 2018-03-12 | 1044565 | ND |
| 2018-05-01 | 1052816 | ND |
| 2018-08-06 | 1071715 | ND |
| 2018-10-08 | 1085746 | ND |
| 2019-01-08 | 1100095 | ND |