1,1-Dichloroethylene
Hellertown Borough Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
17
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 | 6 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-04-08 | 140014669 | ND |
| 2014-04-10 | 140014700 | ND |
| 2014-04-11 | 140014712 | ND |
| 2014-08-05 | 140034958 | ND |
| 2014-08-06 | 140034959 | ND |
| 2014-08-06 | 140034960 | ND |
| 2015-04-08 | 12670922 | ND |
| 2015-04-08 | 12670889 | ND |
| 2016-04-11 | 14152754 | ND |
| 2016-04-14 | 14152783 | ND |
| 2017-05-15 | 16309928 | ND |
| 2017-05-16 | 16309978 | ND |
| 2017-05-17 | 16310028 | ND |
| 2018-05-14 | 8013347-01 | ND |
| 2018-06-12 | 8016922-01 | ND |
| 2019-04-16 | 9010993-01 | ND |
| 2019-05-20 | 9016940-01 | ND |