1,1-Dichloroethylene
City of Alpine
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
20
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2015-07-13 | Q1526754008 | ND |
| 2015-07-13 | Q1526754005 | ND |
| 2015-07-13 | Q1526754003 | ND |
| 2015-07-13 | Q1526754002 | ND |
| 2016-07-12 | Q1628530010 | ND |
| 2016-07-12 | Q1628530009 | ND |
| 2016-07-12 | Q1628530007 | ND |
| 2016-07-12 | Q1628530005 | ND |
| 2017-06-22 | Q1726348015 | ND |
| 2017-06-22 | Q1726348021 | ND |
| 2017-06-22 | Q1726348020 | ND |
| 2017-06-22 | Q1726348013 | ND |
| 2018-07-17 | Q1828669008 | ND |
| 2018-07-17 | Q1828669005 | ND |
| 2018-07-17 | Q1828669004 | ND |
| 2018-07-17 | Q1828669002 | ND |
| 2019-06-18 | Q1937877006 | ND |
| 2019-06-18 | Q1937877010 | ND |
| 2019-06-18 | Q1937877001 | ND |
| 2019-06-18 | Q1937877008 | ND |