1,1-Dichloroethylene
Cliffdale West
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
81
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 | 12 | 0 | ND |
| 2015 | ND | 17 | 0 | ND |
| 2016 | ND | 12 | 0 | ND |
| 2017 | ND | 13 | 0 | ND |
| 2018 | ND | 15 | 0 | ND |
| 2019 | ND | 12 | 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 |
|---|---|---|
| 2014-02-19 | C315511-01 | ND |
| 2014-02-20 | C315534-01 | ND |
| 2014-06-04 | C406933-01 | ND |
| 2014-07-22 | C407378-03 | ND |
| 2014-07-22 | C407389-01 | ND |
| 2014-07-22 | C407387-01 | ND |
| 2014-07-22 | C407378-01 | ND |
| 2014-07-24 | C409539-01 | ND |
| 2014-07-29 | C407375-01 | ND |
| 2014-07-30 | C407382-01 | ND |
| 2014-07-30 | C409570-01 | ND |
| 2014-10-21 | C411567-01 | ND |
| 2015-01-07 | ND | |
| 2015-01-07 | ND | |
| 2015-01-13 | ND | |
| 2015-01-20 | ND | |
| 2015-01-20 | ND | |
| 2015-01-20 | ND | |
| 2015-01-21 | ND | |
| 2015-01-21 | ND | |
| 2015-01-21 | ND | |
| 2015-01-22 | ND | |
| 2015-01-22 | ND | |
| 2015-01-27 | ND | |
| 2015-04-07 | ND | |
| 2015-07-15 | ND | |
| 2015-09-24 | ND | |
| 2015-10-27 | ND | |
| 2015-11-18 | ND | |
| 2016-01-14 | C515408-01 | ND |
| 2016-01-14 | C515405-01 | ND |
| 2016-01-19 | C515396-03 | ND |
| 2016-01-20 | C515413-01 | ND |
| 2016-01-20 | C515393-01 | ND |
| 2016-02-11 | C515402-01 | ND |
| 2016-02-11 | CZ01932-01 | ND |
| 2016-02-16 | CZ02091-01 | ND |
| 2016-04-26 | CZ02661-01 | ND |
| 2016-04-26 | CZ02654-01 | ND |
| 2016-07-18 | CZ07737-01 | ND |
| 2016-10-12 | CZ12568-01 | ND |
| 2017-01-11 | CZ17286-01 | ND |
| 2017-04-06 | CA02311-01 | ND |
| 2017-06-13 | CA05063-01 | ND |
| 2017-07-19 | CA07519-01 | ND |
| 2017-07-19 | CA07532-01 | ND |
| 2017-07-19 | CA11080-01 | ND |
| 2017-07-19 | CA07521-07 | ND |
| 2017-07-19 | CA07524-01 | ND |
| 2017-07-24 | CA07529-01 | ND |
| 2017-08-03 | CA07533-01 | ND |
| 2017-08-03 | CA11870-01 | ND |
| 2017-09-11 | CA14169-01 | ND |
| 2017-10-11 | CA12728-01 | ND |
| 2018-01-17 | CA17879-01 | ND |
| 2018-01-17 | CA17860-01 | ND |
| 2018-01-22 | CA17881-01 | ND |
| 2018-01-22 | CA17871-03 | ND |
| 2018-01-22 | CA17867-03 | ND |
| 2018-01-22 | CA17867-01 | ND |
| 2018-01-23 | CA17871-05 | ND |
| 2018-01-23 | CA17869-01 | ND |
| 2018-01-23 | CA17869-03 | ND |
| 2018-01-23 | CA17871-01 | ND |
| 2018-01-24 | CA17863-01 | ND |
| 2018-01-31 | CA17875-01 | ND |
| 2018-04-16 | CB02583-01 | ND |
| 2018-07-19 | CB07856-01 | ND |
| 2018-10-17 | CB15770-01 | ND |
| 2019-01-14 | CB17917-01 | ND |
| 2019-01-14 | CB17920-03 | ND |
| 2019-01-16 | CB17922-01 | ND |
| 2019-01-16 | CB17938-01 | ND |
| 2019-01-17 | CB17933-01 | ND |
| 2019-01-17 | CB17929-01 | ND |
| 2019-02-25 | CB17926-01 | ND |
| 2019-03-19 | CC04820-01 | ND |
| 2019-05-07 | CC02993-01 | ND |
| 2019-06-04 | CC02985-01 | ND |
| 2019-08-16 | CC09202-01 | ND |
| 2019-10-17 | CC14195-01 | ND |