1,1-Dichloroethylene
Ephrata Area Joint Authority
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
48
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 | 5 | 0 | ND |
| 2019 | ND | 5 | 0 | ND |
| 2020 | ND | 9 | 0 | ND |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 10 | 0 | ND |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2018-01-04 | 7020609-01 | ND |
| 2018-01-05 | 8000628-01 | ND |
| 2018-04-09 | 8007939-01 | ND |
| 2018-07-15 | 8020415-01 | ND |
| 2018-10-01 | 8028440-01 | ND |
| 2019-01-02 | 8018023-01 | ND |
| 2019-01-08 | 9000133-01 | ND |
| 2019-04-02 | 7004831-01 | ND |
| 2019-07-02 | 7011943-01 | ND |
| 2019-10-07 | 9035881-01 | ND |
| 2020-01-03 | 21627535.00 | ND |
| 2020-04-06 | 22168754.00 | ND |
| 2020-04-13 | 22168813.00 | ND |
| 2020-04-13 | 22168812.00 | ND |
| 2020-07-13 | 22753764.00 | ND |
| 2020-07-17 | 22753841.00 | ND |
| 2020-07-21 | 22753842.00 | ND |
| 2020-10-07 | 23319890.00 | ND |
| 2020-10-14 | 23319973.00 | ND |
| 2021-02-12 | 24015884.00 | ND |
| 2021-02-26 | 24015915.00 | ND |
| 2021-04-08 | 24201063.00 | ND |
| 2021-04-14 | 24390930.00 | ND |
| 2021-07-01 | 24976248.00 | ND |
| 2021-07-01 | 24976249.00 | ND |
| 2021-07-16 | 24976360.00 | ND |
| 2021-10-05 | 25545669.00 | ND |
| 2021-10-08 | 25545734.00 | ND |
| 2022-01-05 | 26077518.00 | ND |
| 2022-01-31 | 26077718.00 | ND |
| 2022-02-08 | 26247119.00 | ND |
| 2022-04-04 | 26604674.00 | ND |
| 2022-04-05 | 26604706.00 | ND |
| 2022-07-11 | 27188750.00 | ND |
| 2022-07-12 | 27188828.00 | ND |
| 2022-07-22 | 27188987.00 | ND |
| 2022-10-10 | 27782899.00 | ND |
| 2022-10-25 | 27782954.00 | ND |
| 2023-01-09 | 28307559.00 | ND |
| 2023-01-24 | 28307791.00 | ND |
| 2023-01-24 | 28307813.00 | ND |
| 2023-04-14 | 28855582.00 | ND |
| 2023-04-14 | 28855581.00 | ND |
| 2023-07-11 | 29451550.00 | ND |
| 2023-07-18 | 29451609.00 | ND |
| 2023-08-29 | 29654940.00 | ND |
| 2023-10-31 | 30028779.00 | ND |
| 2023-10-31 | 30028778.00 | ND |