1,1-Dichloroethylene
Auburn Water District
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 |
---|---|---|---|---|
2014 | 0.880 ppb | 1 | 1 | 0.880 ppb |
2015 | ND | 11 | 0 | ND |
2016 | 1.000 ppb | 1 | 1 | 1.000 ppb |
2017 | 0.171 ppb | 16 | 4 | ND - 1.000 ppb |
2018 | 0.168 ppb | 4 | 1 | ND - 0.670 ppb |
2019 | ND | 16 | 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 | Result |
---|---|
2014-06-23 | 0.880 ppb |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2016-05-23 | 1.000 ppb |
2017-05-17 | 1.000 ppb |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | 0.590 ppb |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-05-17 | ND |
2017-08-16 | 0.510 ppb |
2017-10-18 | 0.630 ppb |
2018-02-07 | ND |
2018-05-30 | 0.670 ppb |
2018-09-11 | ND |
2018-11-14 | ND |
2019-03-14 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-08-27 | ND |
2019-10-08 | ND |