1,1-Dichloroethylene
City of Safford
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 5 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 9 | 0 | ND |
2018 | ND | 8 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-05-20 | 550-24920-9V | ND |
2014-05-20 | 550-24920-7V | ND |
2014-05-20 | 550-24920-5V | ND |
2014-05-20 | 550-24920-3V | ND |
2014-05-20 | 550-24920-1V | ND |
2017-03-13 | 550-79203-1V | ND |
2017-05-08 | 550-82534-1VOC | ND |
2017-08-30 | 550-89048-1VOC | ND |
2017-09-28 | 550-90609-1VOC | ND |
2017-09-28 | 550-90605-1VOC | ND |
2017-10-09 | 550-91192-1VOC | ND |
2017-10-09 | 550-91194-1VOC | ND |
2017-10-09 | 550-91187-1VOC | ND |
2017-11-13 | 550-93144-1VOC | ND |
2018-01-18 | 550-96585-3 | ND |
2018-02-21 | 550-98383-1VOC | ND |
2018-05-02 | 550-102282-1 VOC | ND |
2018-05-16 | 550-103092-1 VOC | ND |
2018-07-25 | 550-106735-1 VOC | ND |
2018-08-01 | 550-107260-1 VOC | ND |
2018-10-24 | 550-112337-1 VOC | ND |
2018-10-30 | 550-112590-1 | ND |
2019-01-07 | 550-115930-1 VOC | ND |
2019-01-17 | 550-116613-1 VOC | ND |