1,1-Dichloroethylene
Old Chisolm Estates
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
15
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 |
|---|---|---|---|---|
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-12-04 | Q1849246002 | ND |
| 2018-12-13 | Q1851544011 | ND |
| 2018-12-13 | Q1851544012 | ND |
| 2019-06-06 | Q1932776002 | ND |
| 2019-06-06 | Q1932776004 | ND |
| 2019-11-21 | Q1977813003 | ND |
| 2020-12-17 | Q2050037007 | ND |
| 2020-12-17 | Q2050037009 | ND |
| 2020-12-17 | Q2050037011 | ND |
| 2021-12-09 | Q2134743004 | ND |
| 2022-10-26 | Q2232462003 | ND |
| 2022-10-26 | Q2232462005 | ND |
| 2022-10-26 | Q2232462007 | ND |
| 2023-08-15 | Q2334056001 | ND |
| 2023-08-15 | Q2334056003 | ND |