1,1-Dichloroethylene
River Run S/d
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
11
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 | 1.25 ppb | 2 | 1 | ND - 2.50 ppb |
| 2019 | 0.800 ppb | 2 | 1 | ND - 1.60 ppb |
| 2020 | 0.500 ppb | 2 | 1 | ND - 1.000 ppb |
| 2021 | 1.15 ppb | 2 | 1 | ND - 2.30 ppb |
| 2022 | 1.05 ppb | 2 | 1 | ND - 2.10 ppb |
| 2023 | 1.90 ppb | 1 | 1 | 1.90 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 |
|---|---|---|
| 2018-04-19 | CB02658-01 | 2.50 ppb |
| 2018-07-16 | CB09180-01 | ND |
| 2019-04-30 | CC03139-01 | 1.60 ppb |
| 2019-07-30 | CC09260-01 | ND |
| 2020-04-27 | CD02849-01 | 1.000 ppb |
| 2020-07-29 | CD08830-01 | ND |
| 2021-06-03 | CE02375-01 | 2.30 ppb |
| 2021-08-06 | CE07105-01 | ND |
| 2022-05-05 | CF03515-01 | 2.10 ppb |
| 2022-08-18 | CF09401-01 | ND |
| 2023-05-22 | 752-7477-1 | 1.90 ppb |