1,1-Dichloroethylene
Camrosa Water District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
14
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | 0.433 ppb | 3 | 2 | ND - 0.700 ppb |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-06-25 | 5867-009-1005 | ND |
| 2016-01-12 | 5867-001-1027 | 0.600 ppb |
| 2016-04-19 | 5867-010-0937 | 0.700 ppb |
| 2016-07-11 | 5867-011-0924 | ND |
| 2017-03-27 | 5867-008-1410 | ND |
| 2017-07-13 | 5867-001-1428 | ND |
| 2017-07-13 | 5867-009-1510 | ND |
| 2018-07-17 | 5867-001-0910 | ND |
| 2018-07-17 | 5867-006-0910 | ND |
| 2018-07-17 | 5867-007-0910 | ND |
| 2019-08-21 | 5867-001-1148 | ND |
| 2019-08-21 | 5867-006-1021 | ND |
| 2019-08-21 | 5867-007-1258 | ND |
| 2019-08-21 | 5867-011-1002 | ND |