1,1-Dichloroethylene
Christian Life Center
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
19
Samples
17
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 | 3.16 ppb | 1 | 1 | 3.16 ppb |
| 2019 | 8.09 ppb | 2 | 2 | 6.32 ppb - 9.86 ppb |
| 2020 | 14.0 ppb | 4 | 4 | 12.0 ppb - 17.9 ppb |
| 2021 | 12.5 ppb | 4 | 4 | 8.93 ppb - 15.4 ppb |
| 2022 | 14.0 ppb | 4 | 4 | 13.4 ppb - 14.8 ppb |
| 2023 | 13.2 ppb | 4 | 4 | 12.0 ppb - 14.4 ppb |
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 |
|---|---|---|
| 2018-03-21 | Q1811503001 | 3.16 ppb |
| 2019-01-17 | Q1902677003 | 6.32 ppb |
| 2019-12-16 | Q1980080001 | 9.86 ppb |
| 2020-03-11 | Q2010309001 | 13.7 ppb |
| 2020-06-09 | Q2023128001 | 12.3 ppb |
| 2020-08-12 | Q2032150001 | 12.0 ppb |
| 2020-11-16 | Q2044883001 | 17.9 ppb |
| 2021-02-23 | Q2104566001 | 15.4 ppb |
| 2021-06-03 | Q2114440001 | 8.93 ppb |
| 2021-08-30 | Q2123494001 | 12.8 ppb |
| 2021-12-01 | Q2133191002 | 13.0 ppb |
| 2022-03-15 | Q2208767002 | 14.8 ppb |
| 2022-04-28 | Q2212814005 | 13.5 ppb |
| 2022-08-24 | Q2225169001 | 14.3 ppb |
| 2022-12-14 | Q2237848001 | 13.4 ppb |
| 2023-02-15 | Q2306287001 | 12.0 ppb |
| 2023-04-25 | Q2315529002 | 13.0 ppb |
| 2023-07-26 | Q2329822001 | 14.4 ppb |
| 2023-12-06 | Q2352154002 | 13.4 ppb |