1,1-Dichloroethylene
Hillview Village
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
9
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 | 1.80 ppb | 1 | 1 | 1.80 ppb |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-08-12 | 2014 POC - WELL | 1.80 ppb |
| 2015-06-23 | 1508989-001 | ND |
| 2016-05-25 | 2016 POC-1600024 | ND |
| 2017-06-27 | 1709680-001 | ND |
| 2017-08-02 | EHS1700039797-SR | ND |
| 2017-08-02 | EHS1700039798 | ND |
| 2018-04-24 | 1805916-001 | ND |
| 2018-05-29 | EHS1800023081-SR | ND |
| 2019-07-22 | EHS1900036966-SR | ND |