1,1-Dichloroethylene
Big Bear City CSD
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 | ND | 14 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 6 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-01-02 | 3761-014-1045 | ND |
2014-06-04 | 3761-004-1125 | ND |
2014-06-04 | 3761-016-1020 | ND |
2014-06-04 | 3761-015-0925 | ND |
2014-06-04 | 3761-014-1030 | ND |
2014-06-04 | 3761-012-1105 | ND |
2014-06-04 | 3761-010-1140 | ND |
2014-06-04 | 3761-009-1135 | ND |
2014-06-04 | 3761-008-1055 | ND |
2014-06-04 | 3761-006-1005 | ND |
2014-06-04 | 3761-005-1130 | ND |
2014-06-04 | 3761-003-0750 | ND |
2014-06-04 | 3761-002-0900 | ND |
2014-06-04 | 3761-001-0840 | ND |
2017-05-31 | 3761-004-1015 | ND |
2017-05-31 | 3761-012-1000 | ND |
2017-05-31 | 3761-010-1040 | ND |
2017-05-31 | 3761-009-1020 | ND |
2017-05-31 | 3761-008-0953 | ND |
2017-05-31 | 3761-005-1020 | ND |
2018-06-12 | 3761-018-0800 | ND |